[Yoda]

And yet the Hitter is Drive Loading and the Swinger is Drag Loading, even though both have this initial Pull by the Body (starting from the Feet -- gear train effect) at Startdown?

Yes, both Hitter and Swinger use Pivot Lag (Hips lead Shoulders in the Downstroke) to Load the Power Package (via the On Plane Right Shoulder Turn Thrust against Pressure Point #4).

The essential difference between the two is what is being Loaded and how. The Hitter Loads the Right Triceps to Drive the Club through Impact, and he does so by using the Hands at the Top to resist the motion of the Backstroke Turn per 7-19-1. The Swinger Loads the Left Wrist to Drag the Club through Impact, and he does so by using the Shoulder Thrust to Snap the Club onto the Lag Pressure Point per 7-19-3.