My wife had the same surgery. It was a very slow and painful recovery period. They sent her to physical therapy three times a week, where they inflicted much pain in an attempt to be sure the shoulder did not heal in a "stiffened up" position or without full rotation. I don't think you are going to make your opener, unless you switch shoulders for shooting those stout 10 bore turkey loads. I have never thought it was really necessary to shoot those very, very heavy loads for turkeys anyway. Many turkeys have been killed with field loads of bird shot. I would certainly not be opposed to trying a 16 gauge 1 oz load of something like #4 shot through a fairly full choke from the opposite shoulder. Maybe you could set up a target and give it a test. If you don't have to shoot at extremely long ranges, I don't see why it wouldn't work for you while you heal up. My wife actually had to have the surgery repeated on the same shoulder, the first surgery did not heal properly for some reason, don't know what. She may have "tweaked" it somehow and pulled something loose in the healing process or in the physical therapy sessions, but failures can and do happen in rotator cuff surgery. I would not give it an opportunity to fail, if I were you. Stay away from shooting on that shoulder for a full year, then no 10 bore boomers.