I am going to go with a picture is worth a thousand words. The angle of the oil hole creates the need for the lower adjuster position in order to oil the cup. When I measure the distance from the bottom of the rocker to the ball, I get about .425 (the picture is not dead above so it looks like there is more). When I measure the cup adjuster, I get .185 and when you subtract the distance to the actual bottom of the cup you can subtract another .115, so net is .070. This reduces the pivot point by .355.