Thanks, that all helps a lot. I was thinking of building up a reinforced indexable pickup on the timing chain cover, for the two reasons you mentioned, adjustability, and stiffness. That was related to my question on mounting distance to center of the cam, smaller radius is easier, but I will take you suggestion. Did you mention magnet off balance created issues/concerns? Maybe we /6 could get Andy to do a run of billet 225 covers while he is hot to make alum chips.