Zippy. I feel you can reasonably measure the solids also.
Just now!
I measured one of my two purple cams under my coffee table.
I know for sure one is a .590 and the other the .557 cam. Randomly selecting one and measuring both the "base circle compared the max lobe lift" I get these numbers.
1.5185 to 1.5195 max lobe height, left to right.
and a
1.1495 Base circle.
Since the lifter will react to the highest side of the lobe witch is 1.5195
1.5195 - 1.1495 x 1.5 rr = witch cam
most likely.
MP .590 or MP .557 mike