As I understand it, one of the major causes of squealing is pad glazing due to improper break-in or improper mating with the rotor. For instance, IPD will not warranty their brake components unless pads and rotors are replaced as a set. Then, take the car around the block and run it up to 15 mph, bring it to a stop--do this about 10 times to seat the new components without glazing the pads. If you didn't do all this (in addition, of course to the anti-squeal paste in the right paces), that could be your problem.

FYI, I am going to replace my rears shortly with PBR Metal Master pads and Zimmerman rotors (even though the current rotors are not badly worn). I did this last year on the fronts and have had no dust or squeal at all. If my rears end up squealing, I'll jump in the boat with you!

96 850T, 106K miles. Recently Installed New Bilstein HDs (Love 'em!!) Installing IPD sway bars Friday