I think you guys are exaggerating the shaped skin advantage. I have used both on the same skis, and to be honest, I slip at roughly the same times. Also, there are times when I have to ski significant downhill with the skins on. Having a bit of ski showing at the shovel and tail makes this less painful, giving much more response to turning. Straight skins stick together cleanly too. That said, I now have edge to edge since BD sent me an additional pair. Be sure if you go edge to edge to leave a decent margin on each side so you can dig in a metal edge on steep traverses.