[Weightshift]

The "quick Start Down" of the Swinger is "Instant Acceleration Hip Action," not Instant Acceleration Hand Action. This Hip Action is dictated by the desired Hand Speed.

Not according to the book..

6-H-0 IMPERATIVES
..
F. 9. Quick Start Down (10-23-C)

10-23-C TOP ARC AND STRAIGHT LINE This pattern takes the Hands beyond the Top-of-the-Line point, up and back along an Arc that is retraced when the Hands return to the Top-of-the-Line point. This "retracing" is ideal for longitudinal acceleration with (10-19-C).

I see no mention of hips.

It is exactly the same sequence used when throwing a ball...the body leads and the arm and hand follows.

I gave a simplified description and chose not to mention the weight transfer as ideally the weight transfer occurs as the backswing ends and should be over before drag loading occurs (IMO).