ORIGINAL: Greg / MO
Another thing I HAVE to do is remember to fully rotate my release hand to a vertical position every time. I was getting mixed results rotating to differing degrees.
I'm not sure if Larry's book that Matt's sending you will say anything about it, but as you can see Dave up above in Matt's post, most recommend NOT turning your hand all the way to vertical, as it places stress on your forearm at the shot.. just something to consider before you begin ingraining a motion in your memory.
I agree but if it works,it works,this guy got pretty good doing it the "wrong" way.

But do try to get the angle working first,because vertical is definately NOT the norm.
You can see the tension difference in the 2 forearms pictured and both these guys are among the worlds best archers.