Weak right hand grip, stuck right elbow

[bjornarneson]

All else equal, for a golfer of average ability (ie not Tiger or Hogan) does a too-weak right hand grip discourage the right elbow from passing in front of the hip on the downswing? I am wondering whether this might be true either because it is biomechanically more difficult or because one might be inclined to throw away the angle or early extend in order to square the club face at the bottom.