Very nice motion Mike - thanks for posting it.
Have you tried right anchor? I suspect that would help you solidify the backswing quite a bit and let you not worry about how far back you take the club. Not sure if that is just from the foot slipping, or you really were trying for right anchor here?
Given your shoulder issue, you might try opening up that left foot a bit rather than squaring it off, which would help you get to a square stance and not inhibit the pivot coming through. This would likely allow for more square feet/hips/shoulder lines.
Are your misses generally pulls?
Love the tempo - great stuff
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