At the top, it's extremely difficult to play from short of parallel and across the line with the club.

By the time you reach the top, your body centers should at least be...

From face on, your body centers should be very closely aligned with one right on top of the other.

Both the hands and club will start to shift above the plane line as you reach the top.

From down the line and with a backswing short of parallel, the club head should be...

Look to have the shoulder line 90º to the spine at the top.

From face on, look to get your spine angle tilted more away from the target than it was at address.

From down the line, the hands should be...

As the body rotates, the hands will move up from the middle of the body to...

The big illusion in the golf swing is that the arms move behind the golfer to achieve proper depth in the backswing.