Originally Posted by rockket
dominant shoulder being lower/internally rotated is quite common, especially if you play a sport with a lot of overhead motion
as far as fixing goes - presumably focus on good posture, and a lot of external rotation. will probably have to work your way back up weight-wise to nail form.
Yeah, I was suspected this was the cause. I'm right handed and played tennis a couple of years in my early teens.
Deloads and technique work haven't really worked as I'm not physically capable of pulling the right shoulder as far back and down as the left for the bench setup. As I said, I think its time for professional help.