I saw your post about the elbows. It looks a lot on these squats like when you start the move and shove the hips back and go more horizonal, you also extend your wrist a fair bit. Not sure if that is the case or if I'm seeing things, and not sure if that's your issue, but thought I'd point it out in case it might help. You are making great progress, and it's great to see. Enjoy the bench camp.