tbird.... on the brakes you want just enough to slow the car quickly.. not lock up the back.. the whole idea is to carry your corner speed.. that's were races are won.. if you figure there are 8-12 corners on a typical offroad track.. if you can gain even 1/4 a second a corner then your 2-3 seconds a lap faster!!!! Huge difference.
also be careful if your running the stock slipper as if you run it to loose the metal disc between the pads will get to hot and cause the discs to swell and the slipper becomes inconsistent and make your car start feeling looser about halfway thru the race.
the vented vs slipper discs from associated are way lighter and much more consistant.. easy and inexpensive switch.