From a Geometric basis and a Procedural Basis . . .
They both connect Impact Point and Low Point and are on the Plane but not on the Plane Line . . . So what's the difference? Visually one is a curved line and the other is a straight line.
How does one incorporate the concept of the Parallel Pivot with these procedures? Angle of Approach the Pivot move cross-line . . . But what about Arc of Approach?
Both locate impact at the inside aft of the ball. But Angle of Approach has the club going "out to right field" . . . what about Arc?
How would a Swinger using Arc of Approach differ from one Tracing the Plane Line? Is the pivot and delivery different?
The cause/effects of geometry and physics of loading/unloading with pitch vs punch elbow while maintaining the flying wedges.
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"Support the On Plane Swinging Force in Balance"
"we have no friends, we have no enemies, we have only teachers"
Simplicity buffs, see 5-0, 1-L, 2-0 A and B 10-2-B, 4-D, 6B-1D, 6-B-3-0-1, 6-C-1, 6-E-2