in the modern nascar days---when all wheel discs applied and before ceramic brakes and brake line pressure adjusters/restrictors----the guys would set up their cars by using a wood chisel to chip off pad material on the right front pads and chip off more on the rear pads---in this way the unaltered left front pad would drag the car around the corner everytime setting up the fastest corner speeds---on the really short tracks some would set an extra brake pedal to activate only the left front wheel to set up the turning aspect while the right foot kept you at full throttle...