I think they all have good information as well as things that work better for them.There are certin things that will benefit everyone and certin things that folks have to adapt and change to better fit their style,skill level,or even physical limitations.
My main criticism of Asbell is his squat and turn technique.Everyone I've personally seen try to use it,contorted their body into a completly uncomfortable and unstable position to shoot.It clearly had a negative effect on their accuracy.As I said it may have been more of a translation problem than a problem with form.
