Like @OMyMyOHellYes, I sometimes dive my AIR 2. Love it. (Been diving one since I purchased my first one, a 2nd gen, new in 1987; my "new" AIR 2 is a 3rd gen, which I purchased new c. 1993.) And, again like @OMyMyOHellYes, I always pack a simple power inflator and its inflate hose when I plan to dive my AIR 2, just in case--especially since I have never self-serviced an AIR 2. (I don't know how to, and, besides, I don't have a service kit for mine.) I've never had to resort to this back-up, though.You have all those proper regs and still dive an aaaaaa….arrrrrrr…..aiiii….that weird thingy on the end of your inflator hose.
rx7diver