The 16 inch stroke is so smooth you can't tell it from a regular cue. The KCue locks after each stroke allowing it to be used as a regular cue. On the backstroke, only the butt of the cue moves. It is drawn back on a sliding shaft. Any error in stoking is immediately apparent by observing movement of the tip against the ball.
Correction is automatic, resulting in improved muscle memory.
The energy of the stroke moves through the shaft and into the ball.