Re: Overhead Squat
Keep working on shoulder flexibility. It'll come. When it comes, it comes fast since strength isn't the issue. Once you've got the flexibility and balance, you will progress quickly.
One warmup exercise I do along with the CFWU including band dislocates is that I get on the gravitron and simply swing back and forth 15-20 times or so both with pronated then supinated grips. I usually select an offset weight of 70 in order to keep it a flexibility exercise rather than strength (ie; kipping pullup) exercise.