[Kahuna]

Thanks for you input, tim. The master cylinder is located high up on the firewall in the usual location found in most modern cars. I agree with your assessment about the manual brake pedal having a mechanical advantage, so brake sensitivity would be a concern. I'll probably stick with the stock single-channel system for now. It works well and the car stops very straight in a 'test panic stop'. Although that my change if I decide to go front disc brakes.