David Leadbetter is known for his emphasis on the swing plane.  His popular SwingSetter product reflects that commitment.

There is no doubt that the swing plane is an important indicator of your golf swing.  But this article shows how there is no one “correct” swing plane; it varies based on the build of the golfer.

Here are some choice quotes from the article:

You can easily see that Tiger’s legs are noticeably longer than his upper body length compared to Ben Hogan.  Because of this, Tiger’s swing is naturally more upright than Ben Hogan’s.  Also, Tiger is 6′ 2″ while Ben Hogan is 5′ 8″.

The bottom line is, you need to build a consistent golf swing, not a swing that depends on lines drawn on the computer.

Now, I’m not suggesting you throw away your SwingSetter, or stop listening to David Leadbetter.   What I AM suggesting, is that you view the swing plane as a reflection of correct fundamentals:  footwork, loading, coil, and pivot.

Rather than choosing one method or the other, you would be well served to develop correct lower body fundamentals, and then use your SwingSetter to monitor how you are doing.