Hitting or Swinging there is Right Shoulder Turn Thrust and Pivot Lag, but it only provides the initial Acceleration to Release Point. Then the Power Package is Released with Drive Out (Active Right Elbow) or Throw Out (Passive Right Elbow) to Release Accumulators #2 and #3 Simultaneously (Hitting) or Sequenced (Swinging).
It becomes a Four Barrel if the Four Accumulator is an Action (does ANY work) as opposed to strictly a Motion (no work).