Leadbetter proposes a radical change in teaching the correct path for the backswing. Basically he teaches that a vertical path in the backswing automatically produces a swallow path in the downswing. As in all his books, his concepts are throughly explains and well illustrated.

It's pretty interesting, but it takes some time to understand the reduced backswing. No wasted motion. A few weeks on the range will help. In golf there are no quick fixes, just hope.