Quote: Mr P, You are right it doesn't change the relationship of the valve tip to the rocker;But if the adjuster ball is closer to the rocker,lift will increace.
Yes you are correct that it will change the ratio due to the distance of the contact point on the adjuster up to a point... if you take a straight edge and go from the contact point of the rocker/valve point through the center of the shaft then continue to the push rod side that point is where it would be at the optimum for the adjuster to be at(point of contact for the push rod and rocker)