Mike your feet and shoulders should point toward the target. Your head and right eye should point toward the target no matter how you cant the bow. The more you cant the bow the more you must bend head and body forward. Additionally, the canting must come from bending the body forward so that as you bend the bow cants and your release hand moves with the cant. If you twist your bow hand to cant then you have to twist your release hand the same amount that you twist your bow hand to get the correct release. But when you do this twist your release hand is now away from your face. So this is the reason that you bend your body then all parts move the same.
Now if you will look at all the videos and pay close attention to what Howard Hill does, you will see that he does all this (squaring up to the target bending at the waist to get different cants)but with one small subtle change. He slightly moves his head to his right. I have been told he was left eye dominate so he would naturally turn his head to the right to get his left eye more in line of the arrow.
So if you turn you head to your right it makes it difficult to use your right eye to follow the same line as your arrow.
I hope that this it clear, tough to put into words so that all understand.
These are my thoughts and observations others may disagree.