Too many people are too dependent on their dive computers and don't actually know what the hell they are doing and end up dead because technology often fails.. As you know, I'm an avid cave diver and the guide we always use always tell sis the death count on every cave since we were there last.. Since ehe also is usually on the recovery team, he tells us what happened and every now and then its because they run out of air, but the gauge still says they have plenty..
I remember the old J valves, but never used one - sounded like a good idea, but probably was more of a death trap..
Your watch sound like a wrist computer.. I came close to buying one with the radio wave psi transmitter, but didn't trust the radio waves to not crap out on a cave dive.. But, it would have bee nice to kill one more hose.. that would have taken me down to one hose - primary reg - as my octopus is on my inflater hose and my gauges would be on my wrist.. One of these days..
Did I tell you in Bora Bora we used the dive operator's BC's and regs/analog gauges? The inter-island flights charge a BUTTLOAD for dive gear and the dive operators include equipment rental in your price whether you use it or not.. First problem was on the air gauge they used bars, not psi, so I never really knew how much air I had.. Second problem was there was no depth gauge, so I never knew how deep I was.. I've always used a computer that tells me everything, so kind of a trip to know absolutely nothing on every dive.. There was one dive called Miri Miri that the dive mast came up early on.. turns out we were 120 feet deep, but water was murky, so I couldn't see the surface, so had NO idea how deep we were.. That crap is dangerous...
Friendship is like peeing your pants.. Everybody can see it, but only you can feel the warmth..