BKP:Steve, if my inflator valve gets stuck, I'm heading for the surface with oral inflation, and my good reg... would you teach otherwise? (and... inflator valves get stuck on conventional rigs, too).
If my inflator valve gets stuck AND my primary malfunctions, I'm heading to the surface AND making a list of possible enemies, that have been anywhere near my gear... ('cause coinky dinkies like that just don't happen... and if that particular one *has* I'd like to be pointed to the article...)
Sorry bud, can't answer that, no-one gets into a class with an Air2. Well, you might, but I'll ensure you don't like it one bit within a dive or two....... Then we'll do it closer to my way
There is absolutely no need to lose a reg because an inflator sticks, but I guess the 'to-each-his-own' mentality doesn't understand this rather simple concept. One problem should never create another one when there is obviously a better way.
Having one less hose is a pointless argument BTW, especially when confronted with the above problem you've just introduced.
regards.