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No, and I completed the poll to reflect that. I learned to dive in 1986. I'd never heard of nitrox back then.

I always analyse any gas that I'm intending to breath. 99.9 times out of 100, this just confirms what I suspected or asked for but... I once watched an oxygen rebreather tank being filled from a whip attached to an O2 cascade. When I analysed it, it came out at 72%. One of the other cylinders...

I'm not familiar with any of those regs so cannot comment on them. However... My preference for deco/bailout regulators is for an easy breathe, a swivel turret and excellent flood tolerance. The Scubapro Mk25 satisfies all of the above and that's why I have 6 of them, combined with a variety...

My MOD1 instructor advised me to leave the JJ head in an orientation that would allow any water on the cell membranes to drain off. Seems sensible; however as I understand it, rebreather cells have hydrophobic membranes (hence reacting slightly slower than the cells made for O2 analysers)...

The JJ ships with Apeks US4 first stages. I always swap mine out for Scubapro Mk11s - far better regulators with more easily available service kits. The only Apeks regs I own (aside from the two brand-new ones taken of my latest JJ) are the ones I use to drive my booster. They're just cheap...

Given the Given that you're the one that's asking how to use these things, I can only imagine that you were clueless about how to use the Drager properly. It's the absolute benchmark for safety mouthpieces for a very good reason and all others are just poor rip-offs.

For the same reasons you'd use one with a DSV

If the gag strap is around the back of your neck, you're wearing it incorrectly. I dunno about the crappy AP one, but the Drager and the rEvo copy are designed to be worn with the strap over the crown of your head. For this reason, I wear my mask under my hood and the Drager strap over the hood.

This is the report I wrote shortly after. I do many things differently now (13 years later):

My tox in 2010 happened at 6m

I bought into this system about 6 or 7 years ago and EVERY dive below 25-30m resulted in wet hands. When the dive shop contacted Waterproof, they confessed that the orange O-rings (the ones that are meant to keep your hands dry!!) were faulty and needed replacing. It was a known problem. They...

Bit late to this thread but the info might still be useful… A 3S lithium pack is 12.6V when fully charged but that’s with no load. As soon as a load is added, especially above a couple of Amps, the voltage drops and the drop can be considerable. I’ve used 15Ah and 20Ah LM packs with a heated...

I must’ve done north of 500 dives with a scooter and have never found it more comfortable to ‘rest my left hand on the shroud’. I’ve used Sierras, Cudas, Blacktips and, my weapon of choice, a Piranha P1. If the leash is adjusted correctly, the right hand is all that is needed.

Not if you do it correctly.

Jotrons are toys compared to the Pathfinder/Trojan/BAF strobes. I’ve still got a couple but wouldn’t consider using them ‘standalone’ when I absolutely had to return to the shotline.

I have a Pathfinder and it pales in comparison to my Trojan strobe. Those claims may have been valid when N@90 came out with it but no longer hold true. Trojan also make the ‘Extreme’ version, which is bonkers. https://trojandiving.pl/gb/29-strobes-marking-lights Also consider the Light...

A grand for a first stage? With a yoke connector? :giggle:

Makes dil-flushing more difficult

I'd have thought that choosing the correct lubrication for the task in hand would be more of an OCD thing. I do it 'cos I was an engineer in a previous life and know that getting things done right is more important that satisfying ones obsession with minimalism.

Yeah, it's a massive ball-ache lugging an extra pot of silicone grease about 😏