[Jeff]

Yoda

You state that I am wrong. That may certainly be true. However, I would better appreciate that fact if you provided a detailed explanation.

In 10-10-D, Homer states that the angled hinge keeps the clubshaft on the inclined plane while the horizontal hinge keeps the clubface turning. That's exactly what I was demonstrating in this short video.

I placed the clubshaft on the inclined plane. I could then theoretically vary the degree of roll-over of the clubface while the clubshaft travels on the inclined plane - by varying the instantaneous degree of rotation of the clubshaft during its travel on the inclined plane.

Where is my error in the interpretation of 10-10-D?

You also wrote with respect to the clubshaft-: "it must rotate to and from the Plane of the Sweetspot." How does the clubshaft rotate to/from the plane of the sweetspot when Homer stated in 10-10-D that the clubshaft is maintained on the inclined plane?

Neil - let me ask you a simple question. If you can imagine the clubshaft twirling on its axis so that the hosel rotates around the sweetspot, can you please provide photographic evidence of exactly where in the golf swing this phenomenon is happening? Thanks.

Jeff.