Say you put a pad set on the back with high friction coefficient, and one on the front with low. How does the system handle changes like this? Are the friction coefficients just not that wide of a range, or is the system tolerant of a range of friction coefficients? Ever heard of mixing pad types front and rear (organic, ceramic, semi metallic) on a vehicle causing problems? I would think that front/rear proportioning is a delicate balance, but maybe is surprisingly tolerant to variables. Maybe the effect is less than where payload is placed in a vehicle, and perfect front/rear proportioning is rarely achieved.