I had the discs skimmed on my aero 8 due to brake judder, the Dealer I use for servicing etc asked me if I wash my car then put it away in the garage.....I did!!...
His advise is after washing drive round the block using the brakes to dry them out otherwise the pads sit on the inner side of the discs, allow it to rust slightly and leave a shadow where they had touched the disc causing shudder, I now religiously nip round the block and have had no more trouble
