Let's ask the experts, what is the best procedure for "dialing in" the proportioning valve on a street car? Should you start with the knob turned fully CCW (least amount of prop. valve piston spring pressure) and then start doing panic stops do determine which end of the car starts to lock up the brakes first? I've never been able to adjust mine because it is hard to get any of my wheels to lock up under braking! I'm switching to Performance Friction Carbon Metalic Z rated pads this winter so hopefully that problem will be solved, but I will have to learn to adjust the proportioning valve.
Steve