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I have 2 dives on my new Perdix AI... Love it! I always regarded AI as an additional failure point on a DIR rig with little benefit. I think I was wrong... My left hip pressure gauge is now only a backup, and my AI sensor is neatly tucked away between my 12l doubles. I finally stopped...

I recently moved to Auckland. Send me a PM... Regards Pete

Hey All I relocating and would like to get rid of my cylinders. I have a set of 15l Doubles with SS bands and Isolator Manifold. (Nicely scratched from diving Komati Springs regularly.) I also have a brand new 12l Double set with 2015 Apeks SS Bands and 2015 Apeks isolator manifold. (5 Dives...

I'm not the largest person. I wear a size 12. I find that I have a huge amount of movement between my body and the wing.

Hey All. I need Argon bottle mounting advice. I recently purchased a 6CF inflation bottle for my suit. I am currently a bit frustrated as the DiveRite mounting solution that I purchased is extremely floppy when bolted to the side of my plate. I am also struggling to keep the cylinder from...

I thought that if you split your fins you can swim twice as fast?? It is like having 2 fins on each foot... Can I spit my Jet Fins with a scissor? :D How about a SP Nova split fin hybrid? There's a good idea for R&D...

My biggest lessons learnt: 1) Always run a guideline to the surface when cave diving at night. I discovered that it is very easy to get lost outside the cave in the dark and accidently swim back in without a line. 2) If restrictions in caves looks tight they probably are. being stuck in a cave...

I dive to 1200 Inches regularly. I do it on a single cylinder! :D

Look for colours darker than black. If you can't find then black will do. If you use coloured hoses the gas might travel in the wrong direction and perhaps increase your tank pressure. On a more serious note: I agree with tbone1004 about the DiveRite approach to hose routing. It seems...

We dive in the kelp forests of Simon's Town where the 7-Gill Cow Sharks breed. You normally encounter hundreds of them on a dive and they come close enough for you to touch them with your elbows. I personally find them to be reasonably calm. I am more scared of the raggies, whites, tigers and...

Does it ship in black? Good article... Thanks! I enjoyed it thoroughly. Fascinating how far we have come.

The Original question relates strictly to OW and AOW sport diving so I'll try to give you answers from two perspectives: AOW Sport Recreational Diving: AI Computers are useful and fun to dive although the additional information does not really enhance your diving experience. As a failure point...

Hi There. I am in the process of migrating to the Auckland area and need to know what the requirements are for compressed SCUBA cylinders in NZ. I own 2 doubles sets as well as a number of single sport cylinders as well as multiple stage cylinders. Must scuba valves have burst discs? many of...

Luckily my Left and right posts do not move around. I asked them nicely to stay where they are. You can use other regulators for your sport diving.

If you keep them horizontal with all the ports point at the floor they work well... The only hoses with a slight bend will be the LP wing hose that runs from the right shoulder post down the left shoulder corrugated inflator hose and the left shoulder post 2nd stage hose that runs from left...

Have a look at the Apeks Tec3 dual cylinder regulators. They are absolutely amazing. All the ports point in the same direction and the two first stages are completely symmetrical. The breath extremely well and is completely sealed against cold water. The tec3s look like something that came of...

Hey! It seems I cannot upload files directly anymore... I get some kind of error. If you are still interested in my spreadsheet send me a direct msg. Regards

My spreadsheet is metric and not imperial. I'll add an excel convert function and republish a bit later.

Here is a file I built that includes all the CNS as well as OTU calculations. I have balanced the results with the IANTD C-3201 table and added a simple CNS calculator for you on the second sheet: