Well, we're talking about advanced recreational scuba, not technical, so there's not going to be a travel gas or O2 to complicate things. There aren't that many scenarios involving double 80s and a stage at this level either, but it's conceivable.Sorry to do 2 posts so fast, I just reread this...
So- you think it better to add another bottle into the mix. And at 120ft , when you need that extra gas because something went horribly wrong you hope that you grab the right 80...not the one with travel mix, and not the one with 100% Am I the only one that sees a flaw in this theory. Its not that you can't train to grab the right one, its just why complicate things like that? Its called back gas, not slung gas.....Sorry, not to rant, just please explain the logic here.
-J
My preference would be for the drysuit and large steels, but I wouldn't be very concerned about diving wet with a stage, tight passageways aside (again outside the scope of this forum). I would start the dive on the stage, then switch to backgas. If there's a problem with the stage, I'll switch early. If there's a problem with backgas, my buddy is carrying my emergency gas and is there to assist. I wouldn't dive with a buddy I didn't trust implicitly.
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