ORIGINAL: davidmil
My shoulder would give out if I shot like that ....really. I bet if you stood in front of a mirror you'd find you can drop that shoulder real easy.
That is what happened to me when I tried shooting with the shoulder loaded up and not back.That and my bow wanted to drift and walk all over instead of floating.
Matt having good muscle mass in the shoulders might help him not develop the pain as I did and that most would feel,especially over time.