[MizunoJoe]

The lag pressure required by the small pulley Swinger is less because the butt of the club travels a shorter distance through the pulley section. Less LW speed is required to keep the hands ahead at Impact. Most of the head speed is due to a snap release of max wristcock. With large pulley Swingers, more LW speed is required to keep the shaft from leaving PP #3 behind because the butt of the club moves a greater distance through the pulley section and there is less wristcock so the head doesn't have as far to go to catch the hands. They rely on a big arc, rotation, and arm speed for head speed.