[O.B.Left]

OK after doing some research, I must retract my bent plane line procedure of post 10. That procedure being more correctly described as a straight base line, geometrically correct deal per 10-5-E Closed closed.

A bent plane line is an off plane, unscientific method without proper straight base line tracing.

Per 4-D-O

Remember a flat plane has a straight baseline. A circle is two dimensional and can lie on a flat plane. If the Plane Line loses it straightness the Clubhead Orbit becomes three dimensional and precision vanishes.

Per 10-5-0

Shifting from one Plane Line to any other, however slight, results in a Bent Plane Line (4-D-0) ,that genetic deformity of unscientific golf, with its Bent Left Wrist Syndrome, (3-F-7-A, 4-D-0). Whatever the symptoms the cure is Alignment Geometry and Educated Hands.

I stand corrected. But per 1-L-18 Changes in Plane Angle have no effect on the Plane Line.