Dont feel too bad, I just crashed a couple of hours ago doing similar stuff. Ive been doing stall turns and FFF in all orientations for a while and decided to try some inverted stuff. I did a couple of aileron and elevator flips at high altitude, they were ugly but no crash yet. I then did a loop, again, ugly but no crash. Two more ugly loops later and all is still well. Hindsight would have told me to land a take a break, my nerves were a bit shot, but one more loop attempt and somehow i kicked in rudder at the top!!! yeah, no idea how the hell that happened but several wrong control inputs later and my heli is not enjoying life too much. Interesting crash though, I broke a blade grip, bent the flybar, snapped the end off of one of the seesaws and broke the landing gear. No blade damage whatsoever, they are both fine, only a small nick in my boom, and a broken horiz tail fin. I cant figure out how i broke so much stuff in the head without doing anything to the blades. all in all, it was about a $40 crash, however, I have the SA and took the opportunity to get some aluminum bits, along with an all aluminum tail. Should have her fixed up in no time!!