{"id":18814,"date":"2024-02-27T16:11:14","date_gmt":"2024-02-27T08:11:14","guid":{"rendered":"https:\/\/scubatechphilippines.com\/scuba_blog\/?p=18814"},"modified":"2024-02-27T16:11:20","modified_gmt":"2024-02-27T08:11:20","slug":"xdeep-stealth-tec-hollis-katana-2-review","status":"publish","type":"post","link":"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/","title":{"rendered":"XDeep Stealth Tec vs Hollis Katana 2  Reviewed"},"content":{"rendered":"\n<h1 class=\"wp-block-heading has-text-align-center\">XDeep Stealth  Tec vs Hollis Katana 2 Reviewed <\/h1>\n\n\n\n<p>The XDeep Stealth Tec and Hollis Katana 2 are the two leading <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/sidemount-diving-techniques\/\">sidemount<\/a> BCDs currently on the market. Both BCDs excel in performance across various diving environments and activities. This in-depth review will compare and contrast the specifications, performance, options and design features to assist sidemount divers to decide which system is most ideal for their needs.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Article Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#XDeep-Stealth-Tec-Hollis-Katana-2-History\" >XDeep Stealth Tec &amp; Hollis Katana 2 History<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#XDeep-Stealth-Tec\" >XDeep Stealth Tec<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#Hollis-Katana-2\" >Hollis Katana 2<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#XDeep-Stealth-Tec-vs-Hollis-Katana-2-Specifications\" >XDeep Stealth Tec vs Hollis Katana 2 Specifications<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#XDeep-Stealth-Tec-vs-Hollis-Katana-2-Wings\" >XDeep Stealth Tec vs Hollis Katana 2 Wings<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#Dump-valves\" >Dump-valves<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#Buoyancy-effect-on-trim-using-Mexican-style-sidemount-systems\" >Buoyancy effect on trim using Mexican-style sidemount systems<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#Low-pressure-inflators-LPI\" >Low-pressure inflators (LPI)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#Equipment-stowage-points\" >Equipment stowage points<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#Dual-bladder-redundant-buoyancy-option\" >Dual-bladder redundant buoyancy option<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#XDeep-Stealth-Tec-vs-Hollis-Katana-2-Harnesses\" >XDeep Stealth Tec vs Hollis Katana 2 Harnesses<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#The-XDeep-Stealth-Tec-harness\" >The XDeep Stealth Tec harness<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#The-Hollis-Katana-2-harness\" >The Hollis Katana 2 harness<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#XDeep-Stealth-Tec-vs-Hollis-Katana-2-Bungees\" >XDeep Stealth Tec vs Hollis Katana 2 Bungees<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#The-XDeep-Stealth-Tec-bungees\" >The XDeep Stealth Tec bungees<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#The-Hollis-Katana-2-bungees\" >The Hollis Katana 2 bungees<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#XDeep-Stealth-Tec-vs-Hollis-Katana-2-Weight-Systems\" >XDeep Stealth Tec vs Hollis Katana 2 Weight Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#XDeep-Stealth-Tec-vs-Hollis-Katana-2-Options\" >XDeep Stealth Tec vs Hollis Katana 2 Options<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#XDeep-Stealth-Tec-vs-Hollis-Katana-2-Price\" >XDeep Stealth Tec vs Hollis Katana 2 Price<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#My-choice-Stealth-Tec-or-Katana-2\" >My choice Stealth Tec or Katana 2?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#About-The-Author\" >About The Author<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/xdeep-stealth-tec-hollis-katana-2-review\/#Purchase-my-exclusive-diving-ebooks\" >Purchase my exclusive diving ebooks!<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"XDeep-Stealth-Tec-Hollis-Katana-2-History\"><\/span>XDeep Stealth Tec &amp; Hollis Katana 2: History<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"XDeep-Stealth-Tec\"><\/span>XDeep Stealth Tec<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Released in 2015, the <a href=\"https:\/\/www.amazon.com\/xDeep-Color-Stealth-Sidemount-Diving\/dp\/B08SJM4LS8?th=1&amp;linkCode=ll1&amp;tag=scubtechphil-20&amp;linkId=593c8e7f0b7d6c9a77d5a3248abe1fbd&amp;language=en_US&amp;ref_=as_li_ss_tl\" target=\"_blank\" rel=\"noreferrer noopener\">XDeep Stealth Tec<\/a> immediately gained popularity across the global sidemount community. It had been preceded several years earlier by the Stealth Classic, but the wing design tended to balloon under heavier loads; which didn&#8217;t gain widespread popularity amongst cold-water <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/sidemount-diving-techniques\/\">sidemount diving<\/a> communities.<\/p>\n\n\n\n<p>Ostensibly a <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/sidemount-diving-schools-history-heritage\/\">Mexican-cave-style<\/a> sidemount design ideal for aluminum cylinders, the XDeep Stealth Tec design team finally solved the conundrum of providing sufficient wing buoyancy for heavier steel cylinders without causing the ballooning &#8216;beach ball&#8217; wing effect that had previously plagued Mexican-style sidemount rigs. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"905\" height=\"1000\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-8.jpg\" alt=\"The XDeep Stealth Tec 2.0 sidemount bcd\" class=\"wp-image-18838\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-8.jpg 905w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-8-272x300.jpg 272w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-8-768x849.jpg 768w\" sizes=\"(max-width: 905px) 100vw, 905px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p>Prior to the Stealth Tec, Mexican-cave style systems had never gained popular approval amongst steel-cylinder diving, temperate and cold-water sidemount communities. Likewise, <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/sidemount-diving-schools-history-heritage\/\">Florida-cave style systems<\/a> had never managed to impress warm-water sidemount divers who needed specifical design functionality to optimize with aluminium cylinders.<\/p>\n\n\n\n<p>In breaking that boundary between warm-water and cold-water diving optimization specificity, XDeep heralded a new phase in <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/sidemount-diving-schools-history-heritage\/\">sidemount BCD design<\/a> evolution.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.xdeep.eu\/sidemount-bc-wing-stealth-tec-pr-106.html\" target=\"_blank\" rel=\"noreferrer noopener\">XDeep Product Information Link<\/a><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hollis-Katana-2\"><\/span>Hollis Katana 2<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Hollis has a long background in sidemount BCD design; including the SMS100, SMS50, SMS75 and Katana 1. <\/p>\n\n\n\n<p>Those earlier models strongly reflected Hollis&#8217; roots and were variations upon the ubiquitous<a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/sidemount-diving-schools-history-heritage\/\"> Florida-cave style sidemount<\/a> design. <\/p>\n\n\n\n<p>The Katana 2, released in 2020, reflected a departure from that trend; incorporating the modern principles of sidemount universality that XDeep had pioneered with the Stealth Tec.<\/p>\n\n\n\n<p>For the first time since its release, the XDeep Stealth Tec had a worthy competitor. <\/p>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/www.hollis.com\/product\/sms-katana-2\/\" target=\"_blank\" rel=\"noreferrer noopener\">Hollis product information link<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"669\" height=\"1070\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-7-edited.jpg\" alt=\"Hollis Katana 2 sidemount bcd\" class=\"wp-image-18840\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-7-edited.jpg 669w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-7-edited-188x300.jpg 188w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-7-edited-640x1024.jpg 640w\" sizes=\"(max-width: 669px) 100vw, 669px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"scuba-b4-h2-2\" style=\"margin-top: 10px;margin-bottom: 10px;\" id=\"scuba-831823868\"><div class=\"scuba-adlabel\">Sponsored Link<\/div><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-9354033900485448\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-9354033900485448\" \ndata-ad-slot=\"2393012471\" \ndata-ad-format=\"auto\" data-full-width-responsive=\"false\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"XDeep-Stealth-Tec-vs-Hollis-Katana-2-Specifications\"><\/span>XDeep Stealth Tec vs Hollis Katana 2: Specifications<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The <a href=\"https:\/\/www.amazon.com\/xDeep-Color-Stealth-Sidemount-Diving\/dp\/B08SJM4LS8?th=1&amp;linkCode=ll1&amp;tag=scubtechphil-20&amp;linkId=593c8e7f0b7d6c9a77d5a3248abe1fbd&amp;language=en_US&amp;ref_=as_li_ss_tl\" target=\"_blank\" rel=\"noreferrer noopener\">XDeep Stealth Tec<\/a> and Hollis Katana 2 are very similar in terms of specification, price and functionality. A prospective buyer has to look at the smaller details in order to decide which most exactly suits their needs.<\/p>\n\n\n\n<figure class=\"wp-block-table\" style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.156), 16px);\"><table style=\"border-width:2px\" class=\"mtr-table mtr-tr-td\"><tbody><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\"><strong>XDeep Stealth Tec<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\"><strong>Hollis Katana 2<\/strong><\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Manufacturer Price<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">$599 (<em>2619 Polish Zloty<\/em>)<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">$649.95<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Wing Buoyancy<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">19L \/ 42 lbs<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">18L \/ 40 lbs<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Bungee System<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Loop (6mm \/ 1\/4\u2033)<br>9m\/29ft supplied<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Loop (8mm \/ 5\/16\u2033)<br>Pre-installed<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>BCD Weight<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">2.8 kg \/ 6.2 lbs<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">3.6 kg \/ 8 lbs<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Primary Weight System<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Spine pockets (velcro)<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Spine pockets (velcro)<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Weight Capacity<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">2x 1.5kg (3kg \/ 6.6lbs)<br>4x 1.5kg (6kg \/ 13.2lbs)<br>4x 2.5kg (10kg \/ 22lbs)<br>8x 1.5kg (12kg \/ 26.4lbs)<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">4x 2.3kg<br>(9.1 kg \/ 20lbs)<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Trim Weight Options<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">2x 1.5kg (3kg \/ 6.6lbs)<br>2x 3kg (6kg \/ 13.2lbs)<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">2x 2.3kg (4.5kg \/ 10lbs)<br>(separate purchase)<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Wing Material<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Cordura\u00ae 1100 dTEX<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">1000D Cordura<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Dual-Bladder Option<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Yes<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Yes<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Harness Style Option<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Y<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Y or H<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Adjustable Spine Length<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Yes, soft webbing strap<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Yes, velcro (Quick Fit System)<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Shoulder QR Buckles<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Optional<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">None<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Crotch Strap<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Standard 2\u2033 Soft Webbing<br>Quick-release (optional)<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Standard 2\u2033 Soft Webbing<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Waist D-Rings<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">2x 60mm + 2x rubber<br>2x sliding metal (optional)<br>2x 30mm (optional)<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">2x 30mm <br>2x fixed bent 60mm<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Rear Cargo Pouch<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Standard (optional)<br>Expandable (optional)<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Expandable (separate purchase)<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Buttplate<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Optional<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Optional (separate purchase)<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Colour Options<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">12 main panel colours<br>10 side-panel colours<br>2 edge colours<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Black+Red<br>Black Ltd Edition<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>LPI Hose<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">34cm \/ 40cm \/ 48cm<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Flexible oval-type<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Also Supplied<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Canister light plate<br>Weight adaptor plate<br>1m of 3mm bungee<br>LPI boltsnap<br>Waistbelt triangle retainers<br>2x Waist bungee boltsnaps<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">Chest strap<br>2x Quick Links<br>LPI boltsnap<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"\"><div class=\"mtr-cell-content\"><strong>Other Options<\/strong><\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"XDeep Stealth Tec\"><div class=\"mtr-cell-content\">Wing embroidery<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Hollis Katana 2\"><div class=\"mtr-cell-content\">None<\/div><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>XDeep is, first and foremost, a specialist sidemount BCD manufacturer. That focus has enabled them to offer a much wider range of options and customization with the Stealth Tec. If ordering directly via their website an <a href=\"https:\/\/tuneup.xdeep.eu\/\" target=\"_blank\" rel=\"noreferrer noopener\">online customization process<\/a> allows buyers to decide between a plethora of options in a step-by-step design process.<\/p>\n\n\n\n<p>In contrast, there are no real options when ordering a Hollis Katana 2. You can decide between a single or double bladder wing. There is a limited edition all-black model available. You can purchase additions like a <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/sidemount-pouch-pocket\/\">sidemount pouch<\/a> or trim weight pockets as separate items.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe sandbox=\"allow-popups allow-scripts allow-modals allow-forms allow-same-origin\" style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=scubtechphil-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B08SJ92HB8&amp;asins=B08SJ92HB8&amp;linkId=3e0882383b5b0e4997a12537799fdd27&amp;show_border=false&amp;link_opens_in_new_window=true\"><\/iframe>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe sandbox=\"allow-popups allow-scripts allow-modals allow-forms allow-same-origin\" style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=scubtechphil-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B0789RM19F&amp;asins=B0789RM19F&amp;linkId=4a27eb81ea49cd3fe7a3238f6086dd04&amp;show_border=false&amp;link_opens_in_new_window=true\"><\/iframe>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe sandbox=\"allow-popups allow-scripts allow-modals allow-forms allow-same-origin\" style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=scubtechphil-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B08TQZ31KB&amp;asins=B08TQZ31KB&amp;linkId=f9285573bffc200233a71a5c5b2ce946&amp;show_border=false&amp;link_opens_in_new_window=true\"><\/iframe>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe sandbox=\"allow-popups allow-scripts allow-modals allow-forms allow-same-origin\" style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=scubtechphil-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B08TQ7RJSB&amp;asins=B08TQ7RJSB&amp;linkId=1d659d506f06575f5cc4e88c5ff9fba2&amp;show_border=false&amp;link_opens_in_new_window=true\"><\/iframe>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe sandbox=\"allow-popups allow-scripts allow-modals allow-forms allow-same-origin\" style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=scubtechphil-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B07M7ZSGTX&amp;asins=B07M7ZSGTX&amp;linkId=1b98c68a2c4691ed1ca0ec46cd8c7577&amp;show_border=false&amp;link_opens_in_new_window=true\"><\/iframe>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe sandbox=\"allow-popups allow-scripts allow-modals allow-forms allow-same-origin\" style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=scubtechphil-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B083ND3WJH&amp;asins=B083ND3WJH&amp;linkId=33500ad9ee28cc1cf29b2e5021d652fd&amp;show_border=false&amp;link_opens_in_new_window=true\"><\/iframe>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe sandbox=\"allow-popups allow-scripts allow-modals allow-forms allow-same-origin\" style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=scubtechphil-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B01FGFWQJG&amp;asins=B01FGFWQJG&amp;linkId=58ff8ec5f27d414fec23d4d8cf7707b8&amp;show_border=false&amp;link_opens_in_new_window=true\"><\/iframe>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe sandbox=\"allow-popups allow-scripts allow-modals allow-forms allow-same-origin\" style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=scubtechphil-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B01FED0K70&amp;asins=B01FED0K70&amp;linkId=a9261dbf970351581f9eb95f5e260509&amp;show_border=false&amp;link_opens_in_new_window=true\"><\/iframe>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe sandbox=\"allow-popups allow-scripts allow-modals allow-forms allow-same-origin\" style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=scubtechphil-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B01N5NPSJL&amp;asins=B01N5NPSJL&amp;linkId=4189dd38cc47666733d1af97ecdda8b8&amp;show_border=false&amp;link_opens_in_new_window=true\"><\/iframe>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe sandbox=\"allow-popups allow-scripts allow-modals allow-forms allow-same-origin\" style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=scubtechphil-20&amp;language=en_US&amp;marketplace=amazon&amp;region=US&amp;placement=B07CMLLNCP&amp;asins=B07CMLLNCP&amp;linkId=435d51f9952b0906890d3bf5ec110d96&amp;show_border=false&amp;link_opens_in_new_window=true\"><\/iframe>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"XDeep-Stealth-Tec-vs-Hollis-Katana-2-Wings\"><\/span>XDeep Stealth Tec vs Hollis Katana 2: Wings<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>With only a 1kg\/2lbs difference in wing buoyancy, there&#8217;s little to differentiate between the Stealth Tec and the Katana 2. Both systems retain the majority of wing buoyancy in the lower section of the BCD; making the wings optimal for aluminium cylinder diving.<\/p>\n\n\n\n<p>Whilst being optimized for aluminium cylinders, both wings have more than sufficient lift to deal with heavier steel cylinders and\/or the loads carried during full trimix-level or exploratory cave diving. Both wings will also easily support sidemount CCR systems.<\/p>\n\n\n\n<p>The <a href=\"https:\/\/www.amazon.com\/xDeep-Color-Stealth-Sidemount-Diving\/dp\/B08SJM4LS8?th=1&amp;linkCode=ll1&amp;tag=scubtechphil-20&amp;linkId=593c8e7f0b7d6c9a77d5a3248abe1fbd&amp;language=en_US&amp;ref_=as_li_ss_tl\" target=\"_blank\" rel=\"noreferrer noopener\">XDeep Stealth Tec<\/a> retains a majority of its buoyancy in the lower half of the wing; with only small side panels containing gas on the upper half. The upper central section of the wing is a reinforced nylon plate that does an excellent job of providing protection from abrasion and puncture. The Hollis Katana 2 wing is similarly designed.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"905\" height=\"1000\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Twing-area.jpg\" alt=\"XDeep Stealth Tec wing area and protective hard plate\" class=\"wp-image-18911\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Twing-area.jpg 905w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Twing-area-272x300.jpg 272w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Twing-area-768x849.jpg 768w\" sizes=\"(max-width: 905px) 100vw, 905px\" \/><figcaption class=\"wp-element-caption\">Wing buoyancy area (red) and the protective hard plate (blue) on a Stealth Tec<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dump-valves\"><\/span>Dump-valves<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>The location of dump valves differs on the XDeep and Hollis wings, which can be a major consideration for purchasers, depending upon their dive habits, proficiency level and personal preferences. <\/p>\n\n\n\n<p>The Katana 2 has two dump valves; one on the inner right-side wing and the other behind the divers&#8217; neck; operated by an extended dump cord that routes down the left shoulder strap. Positioning the wing dump on the inside wing is less ideal in allowing efficient gas release, but adds further protection to the dump valve than being exposed on the outside. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1007\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-8-1007x1024.jpg\" alt=\"Hollis Katana 2 detail of the shoulder dump valve\" class=\"wp-image-18869\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-8-1007x1024.jpg 1007w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-8-295x300.jpg 295w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-8-768x781.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-8-45x45.jpg 45w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-8.jpg 1220w\" sizes=\"(max-width: 1007px) 100vw, 1007px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p>It is far less intuitive to locate and isn&#8217;t situated to vent gas directly up and out of the wing. I might try and justify that positioning as a means to better protect the dump valve from abrasion and impacts, but if it were outside of the wing, it&#8217;d still be protected between the divers&#8217; torso and the cylinder.<\/p>\n\n\n\n<p>Shoulder-mounted dump valves or low-pressure inflator options have been a ubiquitous trend in Florida-style sidemount design tradition; starting with the <a href=\"http:\/\/www.advanceddivermagazine.com\/articles\/armadillo\/armadillo.html\" target=\"_blank\" rel=\"noreferrer noopener\">Armadillo A2<\/a> and featuring on the vast majority of commercial rigs sold subsequently over the years. <\/p>\n\n\n\n<p>There isn&#8217;t much justifiable necessity for that feature and multitudes of capable sidemount divers manage perfectly well with rigs that don&#8217;t offer it. Upper-torso dump valves certainly would have some appeal to less experienced divers; becoming useful when the diver doesn&#8217;t have habitually consistent horizontal trim, or as a simple familiarity feature when first crossing over from backmount scuba equipment.<\/p>\n\n\n\n<p>I was initially surprised to see a shoulder-mounted dump valve on the Katana 2; given that it was directly inspired by the XDeep and was a transition towards Mexican-cave design principles. My first assumption was that it merely continued a design tradition; perhaps more motivated by regional consumer expectation than by functionality assessment during a blank-slate design process.<\/p>\n\n\n\n<p>However, the inclusion of a shoulder-mounted dump was explained by <a href=\"https:\/\/tekdiveusa.com\/speaker\/edd-sorenson\/\" target=\"_blank\" rel=\"noreferrer noopener\">Edd Sorensen<\/a>, who had a major contribution to the Katana 2 design process. Specifically, Edd noted difficulties reaching the XDeep Stealth lower dump valve when using the K.I.S.S. Sidewinder CCR system. On that CCR unit, dual scrubber canisters sit above the sidemount cylinders on each side; which can impede arm mobility to the rear body. <\/p>\n\n\n\n<p>Edd Sorenson explains KISS Sidewinder CCR considerations in the Hollis Katana 2 design process:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Edd Sorenson - KISS Sidewinder CCR | Speaking Sidemount #29\" width=\"1290\" height=\"726\" src=\"https:\/\/www.youtube.com\/embed\/GeIni49ZHcM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Whilst perfectly understandable, I do question a design emphasis that emphasizes functionality for a tiny niche of potential users on a specific CCR unit to the detriment of a majority of users who&#8217;d benefit from a lower-wing dump valve; especially warm-water sidemount divers who are using aluminium cylinders.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buoyancy-effect-on-trim-using-Mexican-style-sidemount-systems\"><\/span>Buoyancy effect on trim using Mexican-style sidemount systems<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>The underlying issue is that Mexican-style sidemount rigs retain the majority of wing buoyancy over the lower spine. Positive buoyancy in the wing exerts a force that tries to rotate the diver into a leg upwards position. The lower wing is drawn into the highest position relative to the diver as their wing buoyancy pulls the lower torso upwards.<\/p>\n\n\n\n<p>In Florida-style rigs, full torso-length wings enable the diver to shift gas around the wing to determine their trim. Positive wing buoyancy can be directed wherever the diver desires it to retain trim. That option is not available, or significantly limited, with Mexican-style wing designs where little or no wing volume exists above the mid-torso.<\/p>\n\n\n\n<p>The rotational buoyancy force is also modified, even nullified, when using substantially negative steel cylinders. It is far more prevalent when using aluminium tanks as they become depleted towards the end of a dive and greatly exaggerated when additional aluminium cylinders are carried for technical sidemount dives.<\/p>\n\n\n\n<p>Accurate weighting, <a href=\"https:\/\/www.buymeacoffee.com\/andydavistech\/e\/98887\" target=\"_blank\" rel=\"noreferrer noopener\">principled configuration<\/a> and proactive buoyancy control deal with this issue under routine circumstances. Positive buoyancy on the lower body is managed to prevent it from becoming overwhelmingly forceful against the divers&#8217; trim. It&#8217;s a process of sidemount learning that most warm-water sidemount divers can intimately relate to.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"540\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Positive-buoyancy-sidemount-1024x540.jpg\" alt=\"Sidemount buoyancy dynamics Mexican-style aluminium cylinders XDeep Stealth Tec versus Hollis Katana 2\" class=\"wp-image-19046\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Positive-buoyancy-sidemount-1024x540.jpg 1024w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Positive-buoyancy-sidemount-300x158.jpg 300w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Positive-buoyancy-sidemount-768x405.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Positive-buoyancy-sidemount.jpg 1290w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">A warm-water sidemount student becomes acquainted with the buoyancy dynamics of Mexican-style sidemount and aluminium cylinders.<\/figcaption><\/figure>\n\n\n\n<p>A far bigger problem arises if the diver experiences an LPI free-flow into their wing. In a Mexican-style sidemount system, that has the instant effect of violently pivoting the diver feet upwards. <\/p>\n\n\n\n<p>This is a time-critical emergency because every second of delay adds further gas into the wing, accelerates ascent and allows expansion of the gas already within the wing. There is a point, quickly reached, where the situation becomes unrecoverable and an uncontrolled ascent becomes inevitable. <\/p>\n\n\n\n<p>To prevent that spiralling catastrophe, it is essential for the diver to be able to dump gas from the wing very quickly. The time that action requires is primarily determined by the location of their dump valve. <\/p>\n\n\n\n<p>A shoulder-mounted dump valve demands that the diver first has to fight against increasingly powerful rotational buoyancy forces to get themselves head upwards. It is not a battle that one can assume they&#8217;ll win, or achieve quickly enough. Especially so less experienced or physically strong divers.<\/p>\n\n\n\n<p>In contrast to the Katana 2, the <a href=\"https:\/\/www.amazon.com\/xDeep-Color-Stealth-Sidemount-Diving\/dp\/B08SJM4LS8?th=1&amp;linkCode=ll1&amp;tag=scubtechphil-20&amp;linkId=593c8e7f0b7d6c9a77d5a3248abe1fbd&amp;language=en_US&amp;ref_=as_li_ss_tl\" target=\"_blank\" rel=\"noreferrer noopener\">XDeep Stealth<\/a> only has one dump valve; situated on the lower bottom of the wing. It was a very intelligent and safety-calculated decision; reflecting the buoyancy dynamics I have just described.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>The <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/sidemount-qa-xdeep-stealth-reaching-the-rear-dump\/\">XDeep dump valve<\/a> is ideally situated for exactly that scenario; it will be the highest point of the wing and most efficient for instantaneous gas release without necessitating the diver to physically manoeuvre themselves first.<\/p>\n\n\n\n<p>Additionally, the dump valve is ambidextrous; enabling the diver always to maintain buoyancy control whenever one hand is busy. Gas can be released effectively without deviating from flat horizontal trim or needing any lateral or vertical rotation of the body to move the dump valve higher relative to the wing. <\/p>\n\n\n\n<p> <\/p>\n\n\n\n<p class=\"has-text-align-center has-everlasting-sky-gradient-background has-background\"><strong>Read: <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/sidemount-qa-xdeep-stealth-reaching-the-rear-dump\/\">Reaching the XDeep Lower Dump Valve<\/a><\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"844\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-7-844x1024.jpg\" alt=\"XDeep Stealth Tec 2.0 sidemount BCD side view\" class=\"wp-image-18870\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-7-844x1024.jpg 844w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-7-247x300.jpg 247w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-7-768x931.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-7.jpg 940w\" sizes=\"(max-width: 844px) 100vw, 844px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p>It is clear that XDeep prioritized safety and real-world functionality over convenience and novice-diver familiarity with the dump valve placement. In doing so, it does demand more fundamental diving skill proficiency from the user; especially the ability to retain horizontal trim when diving.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"900\" height=\"563\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-REAR-DUMP-VALVE-edited.jpg\" alt=\"\" class=\"wp-image-18922\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-REAR-DUMP-VALVE-edited.jpg 900w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-REAR-DUMP-VALVE-edited-300x188.jpg 300w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-REAR-DUMP-VALVE-edited-768x480.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">The XDeep Stealth Tec lower dump is ambidextrous &amp; ideally located for emergencies<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Low-pressure-inflators-LPI\"><\/span>Low-pressure inflators (LPI)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Both systems feature low-pressure inflators that route from the left side of the wing. This is typically ideal for any orthodox <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/sidemount-regulator-configuration\/\">sidemount regulator<\/a> configuration and enables clean hose management. Routing from the left side ensures that the short-hose regulator is primary; delivering gas for both wing inflation and breathing whenever the right-side long hose cylinder is removed or gas is donated to another diver. Both BCDs also have blank LPI connections on the right side of the wing, allowing the LPI to be transferred to the other side if divers find a benefit from a non-standard configuration; that can be useful for some sidemount CCR setups.<\/p>\n\n\n\n<p>XDeep and Hollis have different strategies when it comes to the low-pressure inflator (LPI) style. The Stealth Tec is sold with three different length options (34, 40 &amp; 48cm) using an inflexible corrugated hose. The purchaser has to determine which length offers them the most streamlined configuration; whilst also ensuring they have sufficient length to orally inflate their wing. <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"569\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/LPI-hose-types-1024x569.jpg\" alt=\"Flexible versus inflexible low pressure inflator  (LPI) corrogated hoses for diving BCDs.\" class=\"wp-image-18892\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/LPI-hose-types-1024x569.jpg 1024w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/LPI-hose-types-300x167.jpg 300w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/LPI-hose-types-768x427.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/LPI-hose-types.jpg 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Inflexible fixed-length versus flexible oval-style LPI corrugated hoses<\/figcaption><\/figure>\n\n\n\n<p>Hollis has taken an easier approach, fitting their wing with an oval-style flexible LPI corrugated hose. Personally, I prefer the flexible LPI approach; and that&#8217;s what I choose to fit onto most of my sidemount and backmount rigs. It always stays snug to the torso and always enables unimpeded oral inflation of the wing.<\/p>\n\n\n\n<p>Both XDeep and Hollis supply high-quality K-type LPI modules with their wings.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Equipment-stowage-points\"><\/span>Equipment stowage points<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The Hollis Katana 2 features two low-profile D-rings sewn onto the left and right sides of the wing. These are intended as an attachment points for small accessories like spools. The XDeep Stealth Tec doesn&#8217;t have those attachment points; offering two crotch strap D-rings for accessory stowage. I&#8217;m undecided about Hollis&#8217; wing D-rings. They seem convenient, but simultaneously diminish the refined streamlining and tangle-avoidance that sidemount systems endeavour to provide. <\/p>\n\n\n\n<p>Items clipped onto the wings are liable to hang down at the sides, between the diver and their cylinders; which makes them less accessible and could lead to equipment getting snagged together if uncareful. The Hollis wing D-rings need to be used thoughtfully and with attention to detail in how you configure the equipment you&#8217;d attach there.<\/p>\n\n\n\n<p>I have heard positive comments from sidemount CCR divers using the Katana 2 stating that the wing D-rings are especially useful when attaching CCR systems. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dual-bladder-redundant-buoyancy-option\"><\/span>Dual-bladder redundant buoyancy option<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Both systems offer a dual-bladder redundant buoyancy option on purchase. Sidemount lends itself ideally to a balanced rig configuration philosophy which can make redundant buoyancy superfluous for astute divers. That said, there are some higher-level technical divers who value the insurance of redundant buoyancy. The option is available to them with either BCD. <\/p>\n\n\n\n<p>One aspect that I don&#8217;t like about the redundant bladder version of the XDeep Stealth Tec is that the dual-bladder LPI is permanently stitched into the wing. Whilst the primary LPI is removable by a conventional screw fitting, the diver cannot remove the secondary LPI for dives when it isn&#8217;t needed. I feel it would be more flexible and beneficial if the secondary LPI could be removed and blanked off whenever desired. <\/p>\n\n\n\n<p class=\"has-text-align-left\"><strong>My Wing Score:  XDeep 1   Hollis 0<\/strong><\/p>\n\n\n\n<p>Whilst the Stealth Tec and Katana 2 have very similar wings in most respects, and I do prefer Hollis&#8217; corrugated hose; the issue of dump valve location is the deciding factor for me. I have zero use for a shoulder-mounted dump valve as I consistently dive in horizontal trim, whereas I very much appreciate the safety value of XDeeps&#8217; lower-wing dump. Likewise, I cannot agree with Hollis&#8217; positioning of the right-side inner wing dump; I see no practical benefits but some tangible drawbacks.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"XDeep-Stealth-Tec-vs-Hollis-Katana-2-Harnesses\"><\/span>XDeep Stealth Tec vs Hollis Katana 2: Harnesses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The-XDeep-Stealth-Tec-harness\"><\/span>The XDeep Stealth Tec harness<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<p>The XDeep Stealth Tec is sold with a minimalist webbing harness as standard, although a shoulder quick-release buckle version is available as a purchase option. It is not a single-piece harness; both shoulder straps and either side of the waist strap feed into retaining hardware on the lumbar plate. <\/p>\n\n\n\n<p>This makes the harness very easy to adjust without introducing failure points and weaknesses; an important factor for those using high-powered DPVs and\/or carrying heavy cylinder loads. <\/p>\n\n\n\n<p>The harness utilizes rugged nylon lumbar and shoulder plates with an adjustable soft webbing spine strap connecting them. This ability to adjust the length of the system is critical for optimal configuration with aluminium cylinders.<\/p>\n\n\n\n<p>As standard, it features two large 60mm D-rings on the shoulder straps, along with two large D-rings and two rubber sliding O-rings on the waist straps. XDeep offers low-profile 30mm D-rings as an option during purchase. I personally find the low-profile D-rings much more intuitive to use and more conducive to a<a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/ultimate-guide-sidemount-cylinder-trim\/\">chieving the ideal cylinder trim<\/a>.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image aligncenter size-full is-style-default\"><img decoding=\"async\" width=\"566\" height=\"900\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-6.jpg\" alt=\"XDeep Stealth Tec harness rear view\" class=\"wp-image-18836\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-6.jpg 566w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Xdeep-Stealth-Tec-6-189x300.jpg 189w\" sizes=\"(max-width: 566px) 100vw, 566px\" \/><figcaption class=\"wp-element-caption\">XDeep Stealth Tec Harness with spine weight system<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"682\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-HARNESS-INSIDEjpg-682x1024.jpg\" alt=\"XDeep Stealth Tec harness front view\" class=\"wp-image-18915\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-HARNESS-INSIDEjpg-682x1024.jpg 682w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-HARNESS-INSIDEjpg-200x300.jpg 200w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-HARNESS-INSIDEjpg-768x1152.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-HARNESS-INSIDEjpg.jpg 853w\" sizes=\"(max-width: 682px) 100vw, 682px\" \/><figcaption class=\"wp-element-caption\">XDeep harness front view<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>There are also two triangular retainers which can be used to secure the wing waist bungee; although using a longer waist bungee secured at the front with a bolt-snap is a far more preferable option for most divers. The system also has two offset square D-rings on the rear waistbelt for attaching a sidemount equipment stowage pouch.<\/p>\n\n\n\n<p>The Stealth Tec doesn&#8217;t supply standalone retainers for the front attachment of the bungees to the shoulder straps. Whilst the user can improvise an attachment by making small sliding loops of 6mm bungee or 550-cord, I do feel that a fixed metal retainer is preferable for the majority of divers.<\/p>\n\n\n\n<p>I don&#8217;t know many divers who like the sliding O-rings for cylinder attachment on the XDeep&#8217;s waist belt. If diving aluminium cylinders it is worthwhile either adding two extra D-rings for a fixed D-ring approach; or selecting the metal sliding D-rings as a purchase option upgrade.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p>Click here for an excellent <a href=\"https:\/\/getaqui.com\/stealth-2-0-sidemount-assembly-guide\/\" target=\"_blank\" rel=\"noreferrer noopener\">XDeep configuration guide<\/a>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The-Hollis-Katana-2-harness\"><\/span>The Hollis Katana 2 harness<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>The Hollis Katana 2 has a less modular harness design with a one-piece soft nylon backplate instead of the traditional Mexican-style spine strap linking shoulder and lumbar plates. <\/p>\n\n\n\n<p>However, it does incorporate a velcro adjustment system (&#8220;Quick Fit System&#8221;) above the lumber pad that allows the user to extend or shorten the spine length quickly. I feel that the velcro is less secure than XDeep&#8217;s webbing and metal spine system in a load-bearing section of the harness, but it certainly does avoid one of the more fiddly adjustment steps when configuring the XDeep.<\/p>\n\n\n\n<p>The Hollis Katana 2 is supplied out-of-the-box with metal hardware to construct an H-style harness. Whilst less snug and secure for most divers, an H-style harness can be a blessing for those with a larger waistline or with shoulder injuries than impede their range of motion. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"640\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-9-640x1024.jpg\" alt=\"Hollis Katana 2 front view\" class=\"wp-image-18837\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-9-640x1024.jpg 640w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-9-188x300.jpg 188w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-9.jpg 711w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"489\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-6-489x1024.jpg\" alt=\"Hollis Katana 2 Quick Fit System\" class=\"wp-image-18903\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-6-489x1024.jpg 489w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-6-143x300.jpg 143w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/Hollis-Katana-6.jpg 560w\" sizes=\"(max-width: 489px) 100vw, 489px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p>The H-style harness maximizes the space under the shoulder straps which, in turn, makes donning and removing the harness easier. <\/p>\n\n\n\n<p>The XDeep Stealth Tec doesn&#8217;t offer that option, although it is relatively easy to source custom after-market hardware for a harness conversion.<\/p>\n\n\n\n<p>The Hollis Katana 2 is supplied with two large 60mm D-rings on the shoulder straps, along with two large and two low-profile 30mm D-rings on the waist harness. Whilst I&#8217;d personally prefer all the waist hardware to be low-profile D-rings, the system is equipped to dive with aluminium cylinders out of the box. In contrast, the XDeep user will invariably want to replace the sliding O-rings with metal hardware.<\/p>\n\n\n\n<p>The Hollis supplies metal retainers on the shoulder straps for secure <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/set-up-sidemount-loop-bungee\/\">loop bungee<\/a> attachment and also has offset square D-rings on the rear waist webbing for pouch attachment. They include a chest strap in the box for divers who feel a need for that; although in years of teaching I&#8217;ve never encountered a diver who actually needed a sidemount chest strap. It falls into the superfluous clutter category for me; just included habitually because it&#8217;s become expected.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-align-left\"><strong>My Harness Score:  XDeep 1   Hollis 1<\/strong><\/p>\n\n\n\n<p>Both the Stealth Tec and Katana 2 offer the same essential harness functionality for aluminium and steel cylinder diving. <\/p>\n\n\n\n<p>The Hollis has slight advantages in adjustability, but there is some minor drawback in strength and ruggedness for having that convenience. My personal perspective is that I&#8217;ll only configure a harness once, but I&#8217;ll dive it thousands of times. I prefer ruggedness and longevity over saving a few minutes on one occasion during the BCD setup. <\/p>\n\n\n\n<p>I&#8217;ve always felt that the XDeep Stealth Tec was somewhat incomplete out of the box because it doesn&#8217;t supply four metal waist D-rings or metal bungee retainers for the shoulder straps. My students typically have to purchase these separately to get their configuration optimized. They aren&#8217;t expensive or difficult to source extras, but the extra step to purchasing everything you need is a minor downside.<\/p>\n\n\n\n<p>Overall, I think the harness designs are evenly balanced. Choosing between them is a matter of personal preference over smaller details.<\/p>\n\n\n\n<div class=\"scuba-b4-h2-3\" style=\"margin-top: 10px;margin-bottom: 10px;\" id=\"scuba-3083772060\"><div class=\"scuba-adlabel\">Sponsored Link<\/div><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-9354033900485448\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-9354033900485448\" \ndata-ad-slot=\"6151212517\" \ndata-ad-format=\"auto\" data-full-width-responsive=\"false\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"XDeep-Stealth-Tec-vs-Hollis-Katana-2-Bungees\"><\/span>XDeep Stealth Tec vs Hollis Katana 2: Bungees<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The-XDeep-Stealth-Tec-bungees\"><\/span>The XDeep Stealth Tec bungees<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>The XDeep Stealth Tec comes supplied with a generous length (9m\/29ft) of 6mm bungee cord. There are four grommet holes in the soft nylon shoulder plate to facilitate <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/set-up-sidemount-loop-bungee\/\">loop<\/a>, independent or continuous bungee methods. There is also a small steel plate behind the nylon shoulder plate for bungee attachment; it can be used instead of, or with, the shoulder plate grommets. <\/p>\n\n\n\n<p>The inside edge of the upper wing has three small nylon webbing loops on each side through which the bungees can be threaded. This works well to prevent the bungees from getting tangled and twisted; whilst also ensuring that <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/set-up-sidemount-loop-bungee\/\">loop bungees<\/a> will run horizontally underneath the armpits &#8211; as befits an effective configuration.<\/p>\n\n\n\n<p>The 6mm bungee is ideal for most diving cylinders but may struggle a little with the highest-capacity steel cylinders.<\/p>\n\n\n\n<p>As mentioned in the harness section, XDeep doesn&#8217;t supply specific hardware for bungee setup on the shoulder webbing. This, I feel, is a significant oversight. Very few divers prefer the sliding bungee loop method, and the majority will resort to purchasing more appropriate hardware as an after-purchase.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The-Hollis-Katana-2-bungees\"><\/span>The Hollis Katana 2 bungees<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Hollis has always preferred oversized bungees with their sidemount BCDs. Thankfully the 8mm bungees supplied with the Katana 2 are a little more reasonable than the independent bungees supplied with previous SMS rigs. They are, nonetheless, slightly overkill for the majority of cylinders which average divers might use. <\/p>\n\n\n\n<p>The bungees are pre-installed in <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/set-up-sidemount-loop-bungee\/\">loop configuration<\/a> out-of-the-box; although alternative methods could be configured when setting up the rig.  I&#8217;m not really sure why Hollis persists in pre-installing bungees on their sidemount BCDs; bungees need to be individually sized to the diver and that sizing process is best started from scratch.<\/p>\n\n\n\n<p class=\"has-text-align-left\"><strong>My Bungee Score:  XDeep 1  Hollis 0<\/strong><\/p>\n\n\n\n<p>XDeep supplies mid-strength bungees more suitable for the vast majority of sidemount divers, whereas Hollis seems to supply heavy-duty bungees based upon a smaller minority of heavy-cylinder users. That decision probably reflects a locational dive-community trend in the Florida caves but overlooks divers&#8217; needs on a more universal worldwide basis.<\/p>\n\n\n\n<p>I particularly like that XDeep supplies a generous amount of bungee and lets divers configure and size them from scratch. Having set up sidemount systems with hundreds of students over the years, I find pre-installed bungees more of a hindrance than a convenience. If it wasn&#8217;t so critical to individually size them, that wouldn&#8217;t be a problem. But they do need to be carefully sized to the diver.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"XDeep-Stealth-Tec-vs-Hollis-Katana-2-Weight-Systems\"><\/span>XDeep Stealth Tec vs Hollis Katana 2: Weight Systems<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Both the XDeep and Hollis utilize a spine weight system with velcro-secured weight pockets running from the neck to the lower spine. The Katana 2 accommodates 9kg (20lb) of weights in four pockets. XDeep offers a variety of weight pocket sizes, enabling divers to select what best suits their needs; whether that is lightweight tropical diving or cold-water diving in the thickest exposure suits. The largest XDeep spine weight system allows for 12kg (26 lbs) of weight.  <\/p>\n\n\n\n<p>The XDeep can also be ordered with accessory trim weight pockets that are specifically designed to secure onto the <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-to-set-up-sidemount-harness\/\">sidemount harness<\/a> webbing. Hollis does sell general-purpose trim weight pockets, not specifically for sidemount harness attachments, and they are a separate order.<\/p>\n\n\n\n<p class=\"has-text-align-left\"><strong>My Weight System Score:  XDeep 1  Hollis 0<\/strong><\/p>\n\n\n\n<p>The variety of weight system options available with the XDeep Stealth Tec makes it the clear winner in this category. It offers divers a much more refined configuration for their specific needs; reducing bulk and weight when a smaller weight system is needed for warm-water travel diving, but with far greater capacity available for those who need substantially more ballast.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"XDeep-Stealth-Tec-vs-Hollis-Katana-2-Options\"><\/span>XDeep Stealth Tec vs Hollis Katana 2: Options<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The XDeep has a much wider variety of options and upgrades available at the point of sale. Optional features like sliding waist D-rings, custom wing colors and personalized embroidery allow the buyer to create a far more individualized rig. <\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"290\" height=\"452\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-sliding-waist-buckle.jpg\" alt=\"XDeep Stealth Tec optional sliding waist D-ring\" class=\"wp-image-18916\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-sliding-waist-buckle.jpg 290w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-sliding-waist-buckle-192x300.jpg 192w\" sizes=\"(max-width: 290px) 100vw, 290px\" \/><figcaption class=\"wp-element-caption\">XDeep sliding D-ring<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"740\" height=\"732\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-colours.jpg\" alt=\"XDeep Stealth Tec colours\" class=\"wp-image-18917\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-colours.jpg 740w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-colours-300x297.jpg 300w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/XDEEP-colours-45x45.jpg 45w\" sizes=\"(max-width: 740px) 100vw, 740px\" \/><figcaption class=\"wp-element-caption\">Some XDeep colour options<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p>Hollis don&#8217;t offer any customization or upgrades with their BCD. A limited edition all-black version is available at the time of writing. Otherwise, everything is standard out of the box.<\/p>\n\n\n\n<p>The days of &#8220;<em>any colour you want as long as it is black<\/em>&#8221; have gone; modern dive consumers appreciate making their dive kit special to themselves.<\/p>\n\n\n\n<p class=\"has-text-align-left\"><strong>My purchase options score:  XDeep 1  Hollis 0<\/strong><\/p>\n\n\n\n<p>If you want an individualized sidemount rig and more upgrade options at the point of sale, then XDeep has, by far, a lot more to offer. You can check out all of those options using XDeep&#8217;s <a href=\"https:\/\/tuneup.xdeep.eu\/\" target=\"_blank\" rel=\"noreferrer noopener\">online configuration tool<\/a>. <\/p>\n\n\n\n<div class=\"scuba-b4-h2-4\" style=\"margin-top: 10px;margin-bottom: 10px;\" id=\"scuba-2024425961\"><div class=\"scuba-adlabel\">Sponsored Link<\/div><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-9354033900485448\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-9354033900485448\" \ndata-ad-slot=\"2954736365\" \ndata-ad-format=\"auto\" data-full-width-responsive=\"false\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"XDeep-Stealth-Tec-vs-Hollis-Katana-2-Price\"><\/span>XDeep Stealth Tec vs Hollis Katana 2: Price<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The XDeep is ostensibly the cheaper system to buy, but prices do vary according to the region and have to account for shipping and import fees from the factory in Poland. The best price seems to be available if you order direct from the XDeep website and specify Poland as your location; paying in Zloty (PLN). You&#8217;ll have to pay for the shipping to your location. <\/p>\n\n\n\n<p>Hollis manufacture in the USA, which avoids the expense of trans-Atlantic shipping and import taxes for US consumers. That saving can account for ~$150, based on the typical price I see XDeep Stealth Tec listed for in the USA.<\/p>\n\n\n\n<p>Both manufacturers have a global dealership network and it&#8217;s possible to buy either sidemount BCD in many countries.<\/p>\n\n\n\n<p class=\"has-text-align-left\"><strong>My Price Score:  XDeep 1  Hollis 1 &#8211; it varied on location<\/strong><\/p>\n\n\n\n<p>The best price option may be determined by your location. Hollis will be cheaper in the USA. XDeep can work out cheaper in Europe. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"My-choice-Stealth-Tec-or-Katana-2\"><\/span>My choice: Stealth Tec or Katana 2?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Honestly, I&#8217;d be content to dive either of these sidemount BCDs; they are both very good. The majority of my diving is in the tropics using aluminium cylinders and both systems are capable of conforming to the configuration principles needed to make that work optimally. Both BCDs are also more than capable of supporting the trimix and overhead environment diving that I teach as my day-to-day work. <\/p>\n\n\n\n<p>Overall, I feel that the XDeep Stealth Tec is the more refined and performance-focused system. It doesn&#8217;t make any compromises out of design habits and regional-specific traditions or satisfy the imagined needs of less experienced sidemount divers. I feel that the Katana 2 has some superfluous features, and I&#8217;m brutally minimalist at heart. I&#8217;d be compelled to cut away the valueless clutter.<\/p>\n\n\n\n<p>The dump valves on the Katana 2 would annoy me. I&#8217;d probably blank off the shoulder dump and cut away the extended dump cord. In decades of diving, much of it teaching tech and overhead environment, I have never once wished for or needed, a shoulder dump valve. In contrast, XDeep located their dump valve exactly where it&#8217;s needed for worst-case scenarios. It has the potential to help avoid uncontrolled buoyant ascents. That can save divers from trips to the compression chamber, or worse. For decompression diving in the ocean, the benefit is a no-brainer.<\/p>\n\n\n\n<p>Personally, I don&#8217;t care about decorating and beautifying my rig, but I do believe that high-visibility colours are a safety improvement for overhead and low-visibility diving. The XDeep would enable me to apply that belief by choosing a bright orange or reflective yellow coloured wing material. <\/p>\n\n\n\n<p>All things considered, I would personally choose the XDeep Stealth Tec. It&#8217;s the best match for my diving needs, equipment philosophy, and better promotes the diving proficiencies that I encourage students to develop. <\/p>\n\n\n\n<p class=\"has-text-align-center has-everlasting-sky-gradient-background has-background\"><strong>Do you own, or have experience diving, either of the two systems?  Share your experiences in the comments section below!<\/strong><\/p>\n\n\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-content-justification-center is-layout-constrained wp-block-column-is-layout-constrained\" style=\"flex-basis:25%\">\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-medium is-resized is-style-default\"><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/andy-davis-technical-diving\/\"><img decoding=\"async\" width=\"300\" height=\"296\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-300x296.png\" alt=\"Andy Davis Technical Sidemount Wreck Diving Subic Bay Philippines RAID Courses Training\" class=\"wp-image-6812\" style=\"width:225px;height:222px\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-300x296.png 300w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-1024x1009.png 1024w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-768x757.png 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1.png 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-constrained wp-block-column-is-layout-constrained\" style=\"flex-basis:75%\">\n<h2 class=\"wp-block-heading has-text-align-center\"><span class=\"ez-toc-section\" id=\"About-The-Author\"><\/span>About The Author<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"274\" height=\"77\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/bmc-button-1-1.png\" alt=\"\" class=\"wp-image-27046\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/bmc-button-1-1.png 274w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/bmc-button-1-1-250x70.png 250w\" sizes=\"(max-width: 274px) 100vw, 274px\" \/><\/a><\/figure>\n\n\n\n<p><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/andy-davis-technical-diving\/\">Andy Davis<\/a> is a <a href=\"https:\/\/scubatechphilippines.com\/raid-diving-courses-philippines\/raid\/\">RAID<\/a>, PADI TecRec, ANDI, BSAC, and SSI-qualified independent <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/what-is-technical-diving\/\">technical diving<\/a> instructor who specializes in teaching <a href=\"https:\/\/scubatechphilippines.com\/sidemount-courses\/\">sidemount<\/a>, <a href=\"https:\/\/scubatechphilippines.com\/technical-diving-courses\/\">trimix<\/a>, and <a href=\"https:\/\/scubatechphilippines.com\/technical-diving-courses\/\">advanced wreck<\/a> diving courses.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p>Currently residing in <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/subic-bay-wreck-diving-sites\/\">Subic Bay, Philippines<\/a>; he has amassed more than 10,000 open-circuit and CCR dives over three decades of challenging diving across the globe.<\/p>\n\n\n\n<p>Andy has published numerous diving magazine articles and designed advanced certification courses for several dive training agencies, He regularly tests and reviews new dive gear for scuba equipment manufacturers. Andy is currently writing a series of <a href=\"https:\/\/www.buymeacoffee.com\/andydavistech\/extras\">advanced diving books <\/a>and creating a range of <a href=\"https:\/\/www.redbubble.com\/people\/andydavistech\/shop\">tech diving clothing and accessories<\/a>.<\/p>\n\n\n\n<p>Prior to becoming a professional technical diving educator in 2006, Andy was a commissioned officer in the Royal Air Force and has served in Iraq, Afghanistan, Belize, and Cyprus.<\/p>\n\n\n\n<p>In 2023, Andy was named in the &#8220;<a rel=\"noreferrer noopener\" href=\"https:\/\/gue.com\/blog\/sidemount-andy-davies\/\" target=\"_blank\">Who&#8217;s Who of Sidemount<\/a>&#8221; list by GUE InDepth Magazine.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-palette-color-7-color has-vivid-red-background-color has-text-color has-background has-link-color wp-elements-dd81a6de961563c5bf17302e4376cbd2\"><span class=\"ez-toc-section\" id=\"Purchase-my-exclusive-diving-ebooks\"><\/span>Purchase my exclusive diving ebooks!<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/233191\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-652x1024.jpg\" alt=\"Gas Management For Scuba Divers Book\" class=\"wp-image-26264\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-191x300.jpg 191w, 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srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-978x1536.jpg 978w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-95x150.jpg 95w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook.jpg 1200w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/111242\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-652x1024.jpg\" alt=\"\" class=\"wp-image-26656\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/262907\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-652x1024.jpg\" alt=\"A Comprehensive Guide to Backplate &amp; Wing BCDs\" class=\"wp-image-26808\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/260377\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-652x1024.jpg\" alt=\"Diving Psychology The Path to Proficiency: Mental Strategies for Scuba Divers (eBook)\" class=\"wp-image-26633\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n<p id=\"rop\"><small>Originally posted 2022-12-27 23:23:24. <\/small><\/p>","protected":false},"excerpt":{"rendered":"<p>Comparative dive review of the XDeep Stealth Tec versus the Hollis Katana 2 sidemount BCDs. Specifications, features, options, prices, performance<\/p>\n","protected":false},"author":2,"featured_media":18831,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[518,578],"tags":[1305,1306,1303,1304],"class_list":["post-18814","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sidemount-diving_articles","category-technical-diving-equipment-reviews","tag-equipment-review","tag-gear-review","tag-hollis-katana-2","tag-sidemount-review"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>XDeep Stealth Tec vs Hollis Katana 2 Reviewed - Andy Davis Sidemount Technical Wreck Diving Blog<\/title>\n<meta name=\"description\" content=\"A detailed, honest comparison review of the XDeep Stealth Tec &amp; Hollis Katana 2 sidemount BCD systems. 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