[golfgnome]

oh boy.... very confused ):

you may be right, my hand is under the turned shoulder plane.

You really need to get your camera "on plane". It appears as if it is above the plane (high and to close to the ball) which would make it difficult to determine if you are on plane or not.

Next time you take a video try and get the camera to point at the hands, elbow, or turned shoulder then you will be able to properly determine this.

If you have a couple of fiberglass rods set them in the ground at the same angle, shaft angle is easiest, then set your camera so you only see 1 dowel. If you see 2 dowels your camera is off plane. A neat trick is to stand upright and move until you only see 1 rod. You will be amazed how far "behind" a player you need to stand in order to see the plane.