I have had both rotator cuffs repaired - left about 12 years ago, I tore the rotator cuff, biceps tendon, and subscapualris (the one under the armpit) about 2 years ago I had a massive L shaped tear that was borderline repairable - he was able to fix it, but I have probably 85% range of mothin, and 75% strength. Long rides and cold nights will make it sore. I still try to exercise it but after 2 years, I am resigned to the fact that I will probably need a reverse shoulder replacement one day, but they are going to make me wait until I am 70 - 12 more years.