Evolving one’s golf swing takes a ton of practice, something I sadly don’t have much time to do =)

But it’s a fun little side hobby. Thanks again.

As far as the two types of planes, the Golf Digest article kind of shows it a little, but I think I can give a little more information (I wish I had more images available to show the difference – I’ll see what I can dig up).

Basically, if you look at the image above, imagine another pane of glass passing through the shoulders.

At the top of the backswing, those panes/planes will still be parallel – shoulders, left arm, and club – in a one-plane swing.

In a two-plane swing, the left arm and club are in a more vertical plane than the shoulders, so the planes will look more like an X instead of being parallel.

I’m going to try and see if I can put together a couple more images that illustrate the difference. Stay tuned…

Little confused about the two types of planes though, Maybe I’ll look into Hardy’s book