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Andy Davis Sidemount Technical Wreck Diving Blog
Articles for beginner to expert scuba divers
Andy Davis Sidemount Technical Wreck Diving Blog
Articles for beginner to expert scuba divers
Technical Diving
Read MoreAre You A Prestige Diver?
Performance Development for Technical Divers
To excel as a technical diver you need to create a feedback loop to enable continual development. This article explains exactly how to do it!
Technical Diver Traits: Understanding Personality Factors and Dive Safety
Technical diver traits have a profound effect on dive safety and skill development. Learn about these traits and how to develop them!
What scuba training agency is best for technical diving?
Which is the best scuba training agency for your technical diving training? Understand the differences!
Prepare For Technical Diving Courses | 5 Simple Steps For Success
It is vital to prepare for technical diving courses. Follow these steps for the best chance of success in your tech training.
What is the best way to prepare for technical diving training?
Improve your success in technical diving training by following these straightforward steps to prepare yourself before the course starts.
Top 10 Benefits Of Learning Technical Diving
Boost competence, comfort, and confidence by learning technical diving. Discover 10 surprising benefits that raise your ability as a diver!
Technical Diving Experience: The Complacency Paradox
The technical diving experience paradox - acquiring more experience increases the opportunity for complacency to creep in & decrease safety.
Gradient Factor Comparison: 60m Trimix Case-Study
Comparing three gradient factor settings on a 60m trimix dive plan to discuss off-gassing efficiency and DCS risk.
Scuba World Depth Records – Science versus the Human Factor
Perspective on scuba world depth records: human physiology versus the limitations of diving science and technology.
Technical Diving Skills | Reaching Your Valves
This article, posted at DiveDIR, gives great advice on how to reach your valves when conducting valve shutdown procedures.
How to Tie a Regulator Bungee Necklace
Technique and video showing how to tie a DIY regulator bungee necklace for your hogarthian or sidemount short hose regulator.
Technical Diving Valve Shutdown Drill Explained
Follow these 21 methodical and simple steps to effectively drill the technical diving valve shutdown drill for increased safety & proficiency.
What is the Best Technical Diving Computer? | 2025
My review of the best technical diving computer available in 2025. All the specifications and critique you need to make an informed decision!
Top-10 Tips: How To Prepare For Technical Diving Training
Technical diving training is HARD! Increase your chance of success with these top-10 tips on how to prepare for your tech diving course!
Technical Scuba Diving Books You Must Read!
My shortlist of the best 'must read' books for advanced and technical divers. Lot's of knowledge and some good stories
What are the Risks of Technical Diving?
Discover the risks associated with tech diving and how they can be mitigated. Learn how to stay safe while exploring deeper depths.
The Changing Technical Diving Mindset: Issues in Technical Diving
Technical diver mindset: an analysis of change over two decades. Contemporary issues in technical diving and certification.
What is the biggest risk in technical diving (and how to avoid it)
Risk in technical diving and the need for humility and self-awareness. The temptations to ego driven pitfalls and how that risks diver safety.
Technical Diving Development: Goal-Setting For Success!
Don't waste time & money when developing as a technical diver. Create the best training plan to succeed in your tech diving ambitions
Working as a Technical Diving Instructor
My thoughts on working as Technical Diving Instructor after two decades teaching tech, trimix & overhead diving as a full-time pro.
A Logical Application of Gradient Factors for OC Tech Divers
My systematic method for assigning effective gradient factors settings on recreational and technical open circuit dives.
Choose Wisely: Technical Diving Instructor Location
Discover the impact of technical diving instructor location on your training quality. Choose wisely for the most rewarding tech diving course!
Top-5 Tips to Perform Technical Diving Valve Drills
Technical diving valve drills can be a problem on tech courses. These top tips will help you avoid some common errors!
What is Technical Diving?
Technical diving differs from recreational scuba in many ways. This detailed article explains everything you need to know about tech diving.
Tech Diving: Perceptions of Toxic Culture, Elitism & Clique Mentality
Uncover the contrasting views on toxic culture, elitism & clique mentality in technical diving. Is it ego and arrogance or misunderstanding?
XDeep Stealth Tec vs Hollis Katana 2 Reviewed
Comparative dive review of the XDeep Stealth Tec versus the Hollis Katana 2 sidemount BCDs. Specifications, features, options, prices, performance
CCR Review: Testing the Liberty Sidemount, KISS Sidewinder & Triton
Explore top CCR choices for 2024! Dive into Liberty Sidemount, KISS Sidewinder & Triton review by technical diving expert Lu "Yen" Rispoli.
Technical Diving: Redundant Computers vs Backup Timer & Tables
Discover the pros & cons of redundant computers versus backup bottom timers & tables in technical diving. Which option is best for you?
XDeep NX Project Wing: Tested and Reviewed
Technical instructor review of the XDeep NX Project doubles wing. A truly innovative tech wing with some excellent and original features.
The Importance of Deep Stops by Richard L. Pyle
The Importance of Deep Stops: Rethinking Ascent Patterns From Decompression Dives An abridged version of this deep stops article was originally in DeepTech, 5:64; and the full version was subsequently published in Cave Diving Group Newsletter, 121:2-5. by Richard L.…
High Pressure Nervous Syndrome | Deep Diving Maladies
An overview of high pressure nervous syndrome | HPNS | Hyperbaric deep diving malady | Causes, symptoms, treatment | By Andy Davis
Compression Arthralgia | Deep Diving Maladies
An overview of compression arthralgia | Hyperbaric deep diving malady | Compression arthralgia causes, symptoms, treatment | By Andy Davis
Wreck & Cave Diving Helmets
Everything you need to know about sidemount, wreck and cave diving helmets; including how to make your own DIY helmet.
A Guide to Narcosis Managment
A technical article by Barry Fowler, Ph.D. on narcosis management for scuba divers. Learn how to deal with narcosis on deeper dives.
The Varying Permeability Model (VPM) for Dummies
VPM For Dummies The Varying Permeability Model (VPM) for Dummies By Kevin Watts Blog editorial: I reproduced this article, for wider dissemination, from it’s original location at RebreatherWorld forum This article attempts to provide a basic framework for looking…
Oxygen Exposure Management for Scuba Divers
OXYGEN EXPOSURE MANAGEMENT by Richard D. Vann Oxygen metabolism is the primary energy source in higher life forms, but when oxygen enters the metabolic process prematurely, reactive oxygen species can form which interfere with normal function and cause convulsions or…
Decompression Theory Resources | Technical Scuba Diving
Decompression Theory – Links and Resources Here is my selection of educational articles and resources for further reading on scuba diving decompression theory… – Bubble Decompression Strategies by Eric Maiken – VPM Decompression Site by Eric Maiken – Confessions of a Mortal Diver by Richard Pyle…
Technical Diving Standard Gas Mixes
The technical diving standard gas mixes. These breathing gasses ensure risk mitigation and help standardize team tech diving.
Calculating No Stop Time for Scuba Diving
Calculating No Stop Time for Scuba Diving Welcome to an informative article on “Calculating No Stop Time for Scuba Diving” written by Erik C. Baker. This article is specifically designed for recreational divers who want to learn about the source…
Really Simple DIY Shearwater Petrel Bungees
How to improvise bungee straps for the Shearwater Petrel 2 technical diving computer. A secure method to improve Petrel configuration.
A Review of the Human Factors in Diving Course
A Review of the Human Factors in Diving Course by Andy Davis I was recently given the opportunity to undertake the online Human Factors in Diving course. The online version of this course is self-contained, but also acts…
Oxygen Toxicity Dangers by Dr. E.D. Thalmann | DAN
DAN discusses the dangers of oxygen toxicity when using nitrox as a breathing gas. By Dr. E.D. Thalmann, DAN Assistant Medical Director; Captain, Medical Corps, U.S. Navy (retired) It’s a fact: we need oxygen to live. It’s because of the…
Clearing Up The Confusion About Deep Stops | Erik C. Baker
Clearing up the confusion about deep stops, by Erik Baker. A good reading resource for prospective technical divers. Decompression theory
Understanding M-Values | Erik C. Baker
Erik Baker's excellent article on 'Understanding 'M-Values'. Critical reading for prospective technical diving students.
Gradient Factors Explained By Matti Antilla Ph.d
Gradient Factors Explained I have reproduced this excellent article Gradient Factors explained by Matti Anttila in case the original website goes down. It is published here for educational purposes. Gradient factors explained by Matti Anttila Ph.d Remember your first diving…
Gradient Factors for Dummies
Gradient Factors for Dummies by Kevin Watts An explanation of gradient factors settings on your deco software.
ANDI Ascent and Descent Procedures | Diving Techniques
The ANDI ascent & descent procedures explained. Increase safety & promote team-cohesion. Rec & tech protocols | Advanced Diving Techniques
Hyperbaric Oxygen Therapy (HBOT)
What is Hyperbaric Oxygen Therapy (HBOT)? ANDI International Hyperbaric Research Center 74 Woodcleft Ave, Freeport NY 11520 516-546-2026 Article reproduced courtesy of Bruce Konefe Hyperbaric is simply referencing a condition that is above standard atmospheric pressure. Instead of breathing the…