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I tend to attribute it to improved buoyancy. I had Full Cave and Trimix before getting the breather, and thought I had good or even excellent buoyancy, but I find my OC buoyancy greatly improved now that I have several hundreds of hours on the breather.

Before getting rebreather certified, I heard that SAC rates often degrade. However, my experience was different. Recently, I went on an open circuit cave trip in Mexico using a drysuit, sidemount, and doing primarily stage dives. My average SAC rate was 0.35 cuft/min. Before rebreather training...

Preferably you have a likeminded buddy that is willing to progress with you and become a solid teammate. 1/2. If you're not already doing it, get a dry suit and get some experience with it. 1. Find a good tech instructor to teach you doubles and get some dives to familiarize yourself with...

@SouthernSharktoothDiver all those other accessories should be in pockets/securely stowed when not in use.

Subsurface will model surface O2. Up to a ~50 minute pre breath it shows a 3 minute increase in NDL at 100'. That stays same up to about ~200 minutes, after that it starts to reduce NDL. I'm not sure what is up with the model there.

I have run full speed on my DPV with 4 stages into flow no one can swim against and nothing is "flapping around". Having done exactly what your proposing a lonnnnnng time ago, I recommend simply slinging your pony and maybe bungee the valve back to keep it tight. You'll be surprised how it...

Pre dive O2 is prohibitive as the low pressure gradients would require a long time to make a difference. I'll do post dive O2 if I feel the decompression was inefficient for some reason or if I have a short time to an ascent to altitude/flying. BTW: You don't need to be trained to breath O2...

Implied by others, but I'm just going to say it. Rule of thirds for open water deco dives is dumb. I can come up with examples where it is both overly conservative and dangerously underestimates gas needs. Learn to plan min gas to get you and a teammate out safe. If you have an overhead...

We use the term partial pressure to define amount of a specific gas in a mixture referenced to on bar of pressure. So pure oxygen at seal level has a partial pressure oxygen of 1.013 or 101.3% of oxygen density @ 1 bar. Pure oxygen at 6k ft has a partial pressure of 0.80 or 80% of the density...

Funny, I would think judging your remaining scrubber on o2 consumption would be one of the best ways to monitor. For me, I feel they match quite well.

@coldcanbefun The fact you like to tinker and are considering this config makes me think you will be moving into more advanced diving in the future. It can not be understated how much safety familiarity and seamless protocols brings to advanced diving. From this standpoint, talk of using...

You can get them through KISS now. I'm not sure if they have them in stock.

These were my preference with the scitech seals. Simply replace your seals with the glove...

I stayed at the Marriot last year. Goby Divers was more than happy to provide deco bottles and whatever mix I wanted.

Technical divers don't use more conservative settings to deceive or trick themselves into more deco time, they do it because they believe it keeps them safe. Therefore, skipping deco(less conservative setting) is not an option. Expanding on what @tursiops said, a big chunk of technical...

https://scubaboard.com/community/threads/real-gas-the-real-deal.624674/

@grassybreakfast For me, my GF settings are already way more conservative than standard for recreational PDCs, so if my PDC says no deco than a safety stop is likely not warranted. Also, technical divers are expected to be way more controlled and typically don't need to target safety stop...

True, but I don't think individuals having day to day variability negates individual variability over all. It just means individuals need to dive like it's going to be one of their bad days.

The scientific evidence is based on the average outcome from all the people/animals that have been tested. It is good to get to know your body and adjust (within acceptable ranges) for your own personal tolerances.