In retrospect I would be better off getting rid of the right one. That way my weight will be slightly more forward at impact. Unless of course it just rolls over into to middle, I'll have to consult Lance regarding that.
Interesting but caddies vary quite a bit when it comes to actual golfing ability. Would mini tour drop outs turned caddy dominate or would amateur status come in to play as well? I know they have a championship for the PGA teaching pros but even that is not too exciting, just something to fill in the tv schedule on an off week.
Not everyone can get a full 90* of shoulder turn. You are likely making compensations to move the shoulder into the spot you believe it should stop. Do some slo mo swings and try to feel for the true limit of your shoulder turn.