Disc brake conversion (70 Dart)

I know most of what you say, and agree with what you are saying, the problem I have is in your calculations on the spread sheets. 1. You do not account for the friction from the opposite pad in a floating caliper. 2. The braking diameters are incorrect unless I am missing something. I have been driving fast A Bodies for 45 years and unless the is a failure, stuck pistons, calipers frozen, glazed pads or rotors, all of the OEM disc systems work fine. To me the refinements are in the different diameter pistons to evenly apply pressure to the pads, higher friction materials, larger OD rotors to get a better moment arm, thicker rotors and pad materials to dissipate the heat better. Not raelly new technology I can't just upgrade to ant system I have. As for the floating calipers, I'm sure they are not optimum but can really get the job done. I have not seen pad wear problems in any of my cars, including an 96 ACR Neon with 250,000 street miles. I do not road race, so I am not standing on my brakes and trashing a set of pads, rotors, and at least 1 set of race tires every weekend. I usually replace pads every 100,000 miles and Rotors every 200,000 miles.