Well well well.
I have a squealing problem and half of the solutions posted here have already been done.
On the back I've got brand new bendix ultimates, brand new DB4000 slotted rotors, I bedded them in by doing braking from 40-0, 60-0, 80-0 an 100-0. The edge is chamfered from the factory.
There were no shims there when I pulled them apart.
The previous pads were the same and had the same problem until a track day cured them. Is this what it takes???
What's the theory behind it?