Ben, should we then outlaw inverted heli hovering? Their blades aren't designed to handle mistakes either. Dork a heli during a low inverted hover and parts can fly. Besides, I have seen some hard rudder crunches and nothing happened. This was on 40% aircraft. Do you think a Pizza Box Flyer poses a hazard to pilots when it does a tail touch? That practice is now outlawed. While the rulemakers may have a genuine concern for their fellow pilot, you have to see what other aspects of the hobby are being affected and ask yourself if it is really warranted or necessary.