teaching, or drilling, to the back is fine, but why even have a vault event as a judged event if everyone is landing on their backs? My dd was one of those who got a slight concussion from landing on her back at an invitational on a hard mat and hitting her head. I am already dreading judging the timers after sitting through the class at Congress, I couldn't imagine the greater nightmare of having to judge body positions ready to flip, but not flipping, and landing on their backs. The whole thing gives me such anxiety already. I'd opt out of vault if it were allowed....let the ones who love vault take it.I agree with this. And I know I said it earlier, but I do not understand why tsuk and yuri timers have to be done to the feet instead of the back.
ETA: I just think teaching actual progressions that will lead to the correct shapes in the upper levels makes more sense.