Mike this is what I have learned in our discussion so far. Positioning of the rocker it self is a lot more important than the position of the roller on the valve stem. Both would be nice but if you are slightly off the center of the valve stem you are good. Also any change in rocker design or ratio will also change geometry. Camshaft lift would also change the geometry. Glad you came back.
Getting old just means you were smarter than some and luckier than others.
