[Yoda]

People seem to overblow the difference between Hitting and Swinging.

From 12-1-0 and 12-2-0
Components that are the same for both:
1,2,4,5,6,7,8,9,12,13,14,15,16,17,24

Components that are different:
3,10,11,18,19,20,21,22,23

Most especially, Component #4 (Accumulator Combinations) is also different. Even though both Patterns are Triple Barrel Strokes, Hitters use Power Accumulators 1/2/3 and Swingers use 2/3/4. And at bottom, this is the essential difference between the two: Power Accumulator #1 (the Right Elbow) is active in Hitting and passive in Swinging.

Regarding the Pivot, both Hitters and Swingers use the Standard Pivot, i.e., they move freely in both directions (assuming a Square Stance). This also includes the Geometry of Right Shoulder Motion (a Backstroke Turn to the Plane and a Downstroke Turn on the Plane). However, after using the Pivot to overcome the initial Inertia of the Lagging Clubhead in the Start Down, the Physics of Right Shoulder Action differs markedly between the two. The Hitter uses the Right Shoulder as a Backstop -- the "equal and opposite" reaction -- for his driving Right Arm. In contrast, the Swinger uses the Right Shoulder as a Rotor -- Body Momentum Transfer -- for his Swinging Left Arm.

These differentiations are not "overblown." Instead, they are defining. In the words of Homer Kelley:

"The 'mystery' of the Mechanics of Golf fades away when Right Arm participation is understood."