[Jeff]

Yoda

You wrote-: "All parts. Per 1-L #6, "The [Sweetspot (which replaces the Clubshaft per 2-F)] always the points at the Plane Line except when they are parallel to each other".

From my perspective, the sweetspot and the clubshaft are on the same plane when the clubshaft is above waist level (above the third parallel). Therefore, during the early-mid downswing, the butt end of the clubshaft points at the ball-target line (as if the club is merely a dowel stick without a clubhead). Therefore, I "feel" as if it is the clubshaft that points at the ball-target in the early-mid downswing.

From the delivery position to impact, a golfer simply performs a release swivel action that squares the clubface. I do not believe that a golfer can change his on-plane condition after the golf club has passed the third parallel position without "steering". I believe that if I am not perfectly on-plane by the time my clubshaft reaches the third parallel position, then it is too late to alter my imperfect off-plane condition.

Also, the absolute difference between the base of the clubshaft hosel plane and the base of the sweetspot plane reaches a maximum value of about 2" at impact and decreases to zero at the 3rd parallel and 4th parallel conditions. That results in only a small angular difference in inclined plane between the clubshaft plane and sweetspot plane in the impact zone (and which only exists to a significant degree within a distance of about 12" behind/in front of the ball) and that very small difference is something my brain automatically computes on a subconscious level.

Jeff.