I developed a shoulder imbalance that I would like to correct, where my left shoulder is noticeably lower than my right. It is not scoliosis. The results of this imbalance are very noticeable when doing RC/PE2; visually, my left pec appears larger during the upper part of the row, unless I really concentrate on pulling with my right arm and less with my left, which just "feels" wrong. It feels like I'm not fully contracting my left arm. Other info: I had an AC Joint injury in the left shoulder (occurred during a too heavy, poor form power clean attempt about 2 years ago), and I think I may have initially developed or at least exacerbated this problem by doing heavy deadlifts with a mixed grip and not switching up inside/outside hands enough.
So:
1. Any cues to stay in balance for RC/PE2?
2. Continue to progress RC/PE2 where I fully contract both sides or do it where I look balanced?
3. Any other exercises I can add in to help fix this?
4. Is it likely that it will self correct as I progress through the F/H programs?
5. Any other general info that could help?
Thanks in advance.