When I injured my shoulder, could have been brought on by shooting, but it went bad with wresting with a heavy canoe pack on bad footing. One chiropractor said surgery, a doctor said surgery, a second chiro said, "Give me a month and don't use that arm for anything." For a period afterwards, I used a half spread/half swing draw to reduce the amount of rotation my shoulder had to do, kept my draw arm close to my body, released as soon as I hit anchor,(no holding), and shot bows under 60 pounds. After 6 months, I could shoot anything, but I still avoid rotating my shoulder back with my arm raised above level. I was told that is a weak position for one's shoulder, especially mine.