Quote:
| Originally Posted by JasonP Well you will still be a bit narked at 30m on nitrox. That's part of your standard gases, right?
Shutting down the valves won't cause stress. Your first stage exploding in a mass of bubbles bringing down all sort of crap from the ceiling and reducing the viz is going to stress anyone.
So I personally prefer instinctive. I'm going to think a lot straighter when I know that half my gas is safe.
Jason |
I get what your saying, I really do, but you're trying to compare a mechanism for self sufficiency, with a mechamism for team sufficiency. It's no wonder DIR looks a bit crap.
However, I could equally argue that I take a spare twinset as redundancy on every dive, and each third of that gas is self contained in the event of failure, no matter which valve I shut down. If you really work at the team thing, then all of a sudden a lot of the DIR approach starts to stand up against individual approaches.
we don't wave a torch "hopefully". We signal them. They take over. they are a CRITICAL part of the drill / emergency. again, your thinking is "individual". DIr is never going to stand up to scrutiny with an individual mindset. Just as the idea of "hopefully" signalling someone is baffling to a DIR diver.