Here is the general consensus:
- 4 Barrel Hit: absolutely possible and recommended for the advance player. Example: Ted Fort (YodasLuke)
- 4 Barrel Swing: theoretically possible and not recommended even for the advance player. Example: Tiger Woods (when his drives go out of bounds)
- 4 Barrel Right Arm Swing: theoretically and practically impossible to perform.
- 4 Barrel Hit and 4 Barrel Swing are not the same.
With Hitting, you are adding Pivot Thrust, but still primarily Radially Accelerating the whole of the Primary Lever Assembly with your Right Arm.
With Swinging, you are adding Right Arm Thrust which supports the Longitudinal Acceleration of the Secondary Lever Assembly.