I don't believe hitting and swinging can be differentiated solely on a single element.
Per 1-F "This, alone, does not properly separate "Hitters" and "Swingers" because it is possible to "Swing" the Club with either Arm but only the Right Arm can actually "Hit" "
Per 10-19-0 "Hinge Action does NOT differentiate Hitting and Swinging."
What properly differentiates Hitting and Swinging are in 6-H-0. Factors rather than a single factor properly separates them.
6-H-0-E "Associate the following with "Hitting""
6-H-0-F "Associate the following with "Swinging""