when you lower someone, in effect the carabiner (ring, etc) connected to the anchor essentially becomes a pully of sorts. So, it is possible that any force placed on that anchor could be magnified by x2. Am I correct, or am I truly off base, anyone, anyone??
I would say that if the anchor is sketchy, I would rap. However, that kinda depends. That's where technical knowledge, solid judgement, wisdon, and experience come into play. Just like Erik says - there are no hard and fast rules - different situations call for different techniques. If you had rapped off, you probably would have decked and would not be here right now Since he lowered you off from the ground, the rope was still running through pieces of pro (like the piton) and that caught ya.