[scottj]

Reducing the size of the master cylinder does indeed increase the pressure in that side of the system. Increasing the area if the pistons increases the presure at the rotor as well. Adding pistons or increasing their size AND reducing the master cylinder size would each contribute to more braking force on that side of the system. While developing greater pressure for a given pedal effort, a smaller master will cause more pedal travel. I can't imagine that baer doesn't have the system balanced, especially if it is working in other cars.

Scott