TNS I'm very glad that the technique reduces your pain in the shoulder! That is a very good thing. When you are experimenting with the technique try to lift the bow hand, arrow and drawing arm (it is all one package)up to your nose level. This will seem VERY high at first. What this will do is give you the room to rotate your drawing elbow around your spine and allow room for your elbow to travel in a SLIGHTLY downward direction when COMPARED to your shoulder LINE. This movement will help you pull the bow with the lower back of your shoulder and the strong muscles on and around your shoulder blade.
Doing this, you will PROBABLY end your draw SLIGHTLY below your anchor point so then just lift your string hand to your face references.
If you watch the video carefully, you can see the slight downward direction of the movement of the elbow and then the little lift to anchor. Also, if you haven't, you may want to look at the video "shooting a Hill bow using the BEST system" for still more views of the technique.
I always RECOMMEND that you do not draw past your face reference points and then let the hand move forward to anchor. That forward movement disconnects your back tension and it is difficult to get back without starting over.
Feel free to email me with questions. Again, I emphasize that this is one of many ways to shoot a bow and is only offered as a SUGGESTION to try. NOBODY has to do it this way!!!!!