I have torn both of my rotator cuffs and the advice I have always received from the best surgeon I know, my father, is just to put up with the discomfort until I can't anymore and then have the surgery. It has been 6 years at this point and still no surgery. To draw your bow without hurting your shoulder keep your elbow down and at your side and pull it back that way. It doesn't strain the shoulder and has kept me bowhunting.