[Daryl]

Well, maybe if we consider that the #4 Accumulator stores potential power? Then we can consider storage, delivery and its Release.

It's labeled the #4 Accumulator because it's the least one used in Golf. No wonder, because it's the most difficult one to learn.

Releasing them to seek their in-line condition releases their stored potential. Varying the amount of out-of-line and/or the amount of muscular effort will vary the accumulation of Power that can be Released by the selected Triggering action.

“Left Arm Power” in any form or amount can still be considered #4 Accumulator Action. Otherwise it actually substitutes for the Pivot to introduce the circular motion required to produce Centrifugal Force.