Oh that is good to know. By limiting my movement these last days I have noticed a difference already. It is not that horrifying deep ache anymore and I can move my arm in a wider range without screaming. I have a resistance band or two from previous injuries so I think you are right. I will check out a couple of vids and see what I can be doing to help it. It is a bummer now that you mention pull ups as that is one of my mainstays in the gym as it is sog good! We do have one of those ones that assist your weight though so I can pile the pounds on that to make myself light when ready!
Till then, easy does it!