good point about the incapacitating incident. i had a right shoulder dislocation a couple of weeks ago and it made me think about the whole AAD thing. my point is that, while i was clearly aware (and glad!) that my cypres was there, i made every effort and managed to pull the main. i suppose what i'm trying to say is that anyone who would give up in a situation when they are hurtling towards the ground at 121 mph just because they can PROBABLY rely on their safety equipment is a total retard. its simple maths: reliance on human capacity = high risk, mechanical engineering = high risk, but human + mechanical reliance = much safer. when i jump i don't rely on any individual piece of equipment (main/reserve/cypres/alti/ whatever), but i do rely on everything working together. if you go into a potentially dangerous situation and give it everything you've got you are a hell of a lot safer than if you cut out certain options due to complacency.
so the moral of the story is DON'T THINK YOU CAN PREDICT EVERYTHING. you need any backup equipment you can get because you never know whats going to happen. but along the same lines you don't know that they will function properly - skydiving is not a good sport to cut corners in. i am perfectly aware that a cypres will save my life, but i'm gonna fight like hell before i give it the chance!
ps. - this isn't aimed at anyone in particular, i think everyone in this thread agrees with each other. less bitchin' more thinkin'