[BerntR]

That's what defines the Plane. Hands and Clubhead.

I know.

So ideally at impact you have the whole club, the hands and the right forearm on plane. The whole left arm and the right upper arm is above plane. That is a lot of moving mass above the swing plane right there. This moving mass isn't counter balanced with mass sitting below the swing plane. Cause there aint nothing there.


In other words; the primary lever assembly isn't properly balanced for an on plane motion powered by an on-plane linear force. If you thrust on-plane the lever assembly will be moved off plane. And the clubface will be rotated open. So you have to manipulate the direction of your linear thrust and add a little anti clock wise torque to keep the cluface under control to make the stroke look pretty and and well behaved through impact. But you would really fighting against a mass distribution that is unbalanced.

But I don't think good golfers do that. I think they swing and thrust on planes we don't see. Cause we really haven't figured out what planes we should be looking at when we study the physics involved.

Some good golfers are so close to what is commonly held as ideal planar motion that we take it as a confirmation of a very good stroke and a very good theory. At the same time there are equally consistent players who are doing all kinds of plane shifting and plane bending that are equally effective. Then we tell each other that we are looking at compensation and that they get good results not because of but in spite of.