[Loren]

Parallel to the angle of the right forearm at impact fix transplanted to the aft-inner quadrant of the ball aiming point, a few dimples this side and aft, from the Top, PP#3. It's not all that precise either. Experimental for hitters. A "feel" thing, and it's amazing what feel can do for you if you let it.
Why the Angle of Approach? "I dunno. Satisfies the urge to 'steer', I guess." HK according to YodasLuke, hitters only.
That angle adjusts for ball placement, shaft length and lean.
The aiming point of the hands' location at impact fix is a fallback procedure (6-E-2). Just be sure the thrust is Down and Out to get there.

Weight shift motion parallel to that delivery line for cross-line procedures. Parallel to the plane line for in-line procedures.