Caliper and Master Cylinder Info

I'm happy with the way my car stops. I fine tuned it a little more by using smaller bore rear wheel cylinders, per Richard Erinbergers article. Probably could have done the same with an adjustable prop valve. I don't have residual valves on my car. I understand they are for when the MC is lower than the wheel cylinders, as in a street rod with the MC under the car.