theskull:I have an answer for that one. The long hose requires proficiency and comfort.....
theskull
The problem is, so does an AirII. I had an occation to dive with a diver with an AirII and during the pre-dive chat I mentioned that if he went OOO to grab the reg in my mouth. I then stated that give that he had an AirII I'd assume if I should have an OOO I'd grab the reg in his mouth. He wasn't thrilled.
Back on track: I really like the responses so far in this thread.
Lamont: I read your post and it reminded me a fair bit of my own experiences over the last year or so, just minus the tech diving.