One additional thing I forgot to mention was that I always got a bit of pain with the shoulder of the same side (left) from squatting. It was noticeable with the abduction of the arm with the forearm being perpendicular to the floor, especially during the warm ups. This was fairly bad when I was benching at the same time. Here's a video to show how my elbows were on squats. Thumbless grip, width was always index fingers on the rings.