Are you using the Z23 or Z26 pads? Tracking or daily? I just changed out the Brembos for Powerstop Z23's, haven't been pushing them but they, so far, have performed well. When I first installed last week there was a little slip right when coming to a stop, like when you wash your car and the rotor is still wet. It stopped after about three or four days. I had also changed out the rotors for Powerstops because one of my fronts was damaged so that may also be a difference. The Z26's are made for performance driving so don't perform as well as the Z23's for a daily. My rims though are much happier w/o all the dust, will post pics when I changed the rears out and wash it.