firstly, i have to agree with mr. huck in the sense that jumps cant always be unavoidable for the over hit.  i too have shaped hundreds of jumps in many different circumstances. (air & style, gap session, bc kickers for candidekamera, etc...)  however, there is more than just correct angles that go into play.  the rider and the way he/she hits the jump can make an amazing amount of difference in the overshot question.  much like mr. huck, i have the scars and lumps to prove it...
second, there is a much larger list of great shapers, and although jon is shaping, he is certainly not on the list of the top shapers.  maybe the most vocal...  he has learned from some of the best scando and n.a. shapers over the last years before he started joi.  he is very paticular and that is important, but people still get hurt on his features, and he hasnt come up with anything new...  now candide's shapers, that is entirely different!!!  aside from the monster, big bertha (which was only there for the very extinguished riders), his features at the candide inv'tnal over the last few years are nothing more than incredible!!!
lastly...  big vibes to willey and tanner!!!!  good luck homeys...  and the reason why tanner's seems more important is because it is a more major injury, AND it's tanner, one of the guys that has changed our sport...  no disrespect for willey, but he has a million more things to get accomplished before he steps to that!!  but my thoughts are for you boyz, get back on your boards soon bros!!!!