That's a tricky question, because pedal feel and overall performance have lots of different variables. Rotor size, caliper size, pad size, pedal leverage ratio, etc all affect how much pedal effort you need and how well it will perform. With the pedal ratio modded to close to 5:1 with 12.2" rotors, Superlight 1.75 4 pistons and Dynalite 1 3/8 4 pistons and Hawk Black pads and after messing with the balance bar a bit I think my brakes feel pretty good. In fact, if I stuck someone else in the car and didn't tell them, I doubt they would know that it was a manual setup. That said others running 6:1 ratios seem to like bigger masters, more like 1".