My shoulder is slowly improving. Over the last few days I've been doing more with it. This whole deal with my shoulder is more than my rotator cuff. It's also the tendinitis in the triceps and biceps. When I do pushups or pullups this is what becomes more aggravated than the Rotaor cuff. I have a huge size and strength difference between my L and R. Which has always been the case. I thought that once I started to do my body weight exercises this would change. It did not. So now with this injury I'm taking a new approach. In an attempt to try to build muscle on my left arm and shoulder I've been doing bicep curls, hammer curls and the like. Only doing them on the left side and right now with low weight. Yes, your right it's not really functional strength. I need to build some mass on that arm as a protective measurement. I'm also doing a lot of arm bars and TGU's, windmill and walking lunges with a DB overhead.