As a newbie trying to understand cam sizing from manufacturer to manufacturer I decided to make a chart of the various sizes and colors (up to a C4 #1). Maybe of some use to other folks looking into trad rack stuff.
For extra credit you could add another size dimension - head width. Probably need another axis on you charts A narrower head was a (maybe was THE) big selling point of the original CCH Aliens.
I wanted to include head size and also cam width or cam surface area but that data doesn't seem to be available from most manufacturer websites. I could bring calipers along on a trip and figure it out I suppose.