OK, tnx. Been a while since I worked out the numbers, but for that lift, IIRC the ideal, minimal scrub width would at .030", or a hair less. (I'd have to work out the exact numbers to know for sure. I worked it out for .500" lift a while ago and it was .032" or .033")
That minimal scrub width will occur when a line from the rocker fulcrum's axis center to the roller contact point is perpendicular to the axis of the valve at 1/2 of the lift. That setup minimizes the velocity changes on the valve/spring induced by the rocker motion.