Corey, if you want to save money - take your old blue jeans and cut the legs out of them. Cut different lengths of the legs for different sized bags. Sew up one end completely and leave a fill hole in the other. Fill with sand or beans or rice or ??- don't stuff them tight - then close them up. You can use those varying sized bags to achieve a more comfortable and solid rest. Positioning the bags at the butt can also be useful in absorbing recoil. Put some padding on your shoulder and see if that helps also.