All to often the word "snap" is used in the pejorative sense; it's really not the 'bad habit' it is made out to be. I have most of my aerobatic models (Pitts Special, and two pattern aircraft) set up on the tail heavy side just to help them snap even more easily than the airframe design alone would allow. I like them that way because it makes many aerobatic maneuvers nearly effortless.

In my experience, most pilots accidentally snap their aircraft either when they are flaring too high, banking too steeply on approach, or when they are pulling out of a dive. Yes that's right, I said pulling out of a dive. Remember, it's an excessive angle of attack, not airspeed or attitude, that stalls a wing. The ingredients necessary for a snap to occur are always there.....waiting.