[t walgamuth]

On my old Lotus 7 replica there was proportioning valves one for the front and one for the rear. In autocross you find much different track conditions and need to be able to do whatever is needed to balance the brakes the way you want them.

What works perfectly on dry hot concrete will make the rear loose on cold asphalt and you'll have a problem.

It is easy to forget about the adjustment and blame the driver too. I have had days where I never figured it out until after the event was over.