I am running a Wilwood dual Master cylinder system with a balance bar for front to rear bias adjustment. With moderate to heavy pedal pressure ( she said - wife mashing the braking pedal while I was monitoring the gauge) I'm looking at about 800 psi on all 4 corners. Adjusting the brake bias rod doesn't seem to make a lot of front to rear psi difference? Maybe a 100 psi difference with the adjustment all the way in ether direction. Is this normal or should I be seeing a bigger psi change? I haven't "skid" tested it yet.