Looks great Todd! will be a useful tool for a lot of budding brake modifiers
I should pick on your calculation of pad effective radius, because it is too simple, but it is really irrelevant due to the natural variation of other factors, lik Cf, lol.
btw, speaking of Cf, you mention an average value of .38 for factory type pads; just an FYI, many factory pads these days are much closer to the .47 than you would expect. Many systems these days are sized a bit small, and the performance is made up with higher friction pads; which leads to a lot of the dust complaints people have with a lot of new cars.
