Another tip that I am working on and my blank bail regime.
First, DO NOT HOLD the bow up!!! The bow will hold itself up with the contraction of the bow arm lateral/back muscles...lock those in first and foremost...and will be held in place by the tensions between the string drawn and the thumb pad...IF you have the muscles locked, the arm in the proper alignment, then nothing else is needed!!!! If you can't hold it rock solid, then either you haven't locked the lateral muscles properly, your alignment is out, or you are over-bowed. When locking the lateral muscles, your bow shoulder will automatically come down into the right position.
My blank bail work: I have made 3 recordings on my MP3 player, of my shot cycle, from start to finish, including breathing patterns, rest and muscle relaxations (relax everything at anchor). I go to the bail from 5 yards, with my eyes closed and follow the instructions on the player for the three shots. This gives me the full cycle, plus timing. It can be easily rerecorded if I want to speed up or slow down the cycle...but it really helps on those days when everything is flowing too fast. Then there are other days when I only work on the release and allow the recording to lead to it...you can consciously pick and choose what you want to listen too, to improve.