[EdZ]

Mike o..

BTW there is a Shaft Plane and a Sweetspot plane so the people who are referring to the Clubshaft are referring to the visible plane but Homer was referring to the invisible sweetspot plane

There are many planes.....There is not a "The PLANE" situation here...
AS

philly - I am talking about the 'invisible' plane - which boils down to the plane of 'motion', of forces in the swing. My personal take is that it is far better to simply monitor the path and plane of PP#1 during the entire motion, than to worry about the clubshaft, or to a certain extent, even the sweetspot.

The club only knows what the HANDS tell it and the ball only knows what the club tells it. By monitoring the path/plane of the hands, the pressure points in the hands, you don't need to worry about the shaft or sweetspot because they will 'follow' what the hands dictate.

Annikan - I disagree a bit that there is no 'the' plane because if you have maintained balance during the entire motion, chances are the hands, the pressure points, will have effectively stayed on a single plane of motion. They will 'orbit' the center of balance.