Please Compare and Contrast the Arc of Approach and Angle of Approach . .

[12 piece bucket]

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?