I've searched the ends of the earth to solve the same problem with my Juicy 5's..squeeling, causing bike-vibration - it took all the pleasure out of mtb'ing and my "supposed to be" high end carbon Giant - 1000 visits to what I consider to be the best bike shop and techie dude, who fixed it every time, just to"voluntarily" revert back to the same problem without notice - I could not take it any more. After the Breede Rivier race I dumped it at W.E. bike shop! Now it's got XT brakes - all I can say, I finally found a cause in life, a reason to live, and it's not world peace - it is to rid the earth of Juicy brakes, and supply every peace force with a load of XT brakes to hand out to those who do no have it! No more squeeling brakes!!!!!!! XT rocks!! The ONLY solution!