Thanks dude! I will explain it all properly, but basically I've got golfers elbow and tennis elbow that really flare up with particular obstacles.
Jiu Jitsu is particularly rough on the shoulders with all the locks... you really want it as flexible as possible.. but yeah, it'll be so good once you're back in the groove. I've actually set up my own cable machine with some wire and a light kettlebell and do a series of rotator cuff type exercises... something like that might help strengthen and get some mobility back in your shoulder. So weird that a tear would help... but it kinda makes sense... the body doesn't really know how to handle overuse injuries... it doesn't really see it as a problem.. but the tear was obviously needed to be fixed... so all the blood flowed to that shoulder and fixed all the stuff.
I do a lot of heat and massage and rollering just to get the blood to flow into the areas that need help (no idea if it works... but y'know).