full depth, toes forward, without falling backward? Seems like there may be more to it than ham/glute strength and dorsiflexion. I'm looking into Eric Cressey a lot lately and he says some cool stuff about HIRD-hip internal rotation deficit-but I'm still a bit skeptical whether it's going to take everyone or almost everyone to goal. What say you? Are there structural limitations, in the foot perhaps, that keep some people from being able to get full depth?