M2, been there with the rotator cuff. Had the right side fixed about 10 years ago, didn't have much choice, tendon snapped completely, couldn't raise my arm over halfway. Doc said the other side eventually would be a problem too, and it is. Not bad enough for me to use up another 3 months of sick leave to get it fixed though. Been some times when I go to a shoot, and have to shoot the rifle left handed, can't hold it up with my left hand for more than a few seconds at a time. I find it doesn't flare up so much if I act my age and don't go trying to do things I did 25-30 years ago. Why go around picking up heavy stuff, when I got a tractor with a loader?