Used the wheel specialist at dyce also, for my current and previous car, they will walk you through the process used if you ask.
Highly recommended, wheels are dipped, all coats baked on, great finish.
2nd for PPS, always had good service and a top job from them. They are sometimes so busy they are out the door though, worth a quick call first to check turnaround times.
New RS6 PE ordered in Nogaro...it's a long wait!
2015 Suzuka Grey RS4
Well lately the wheel specialist in Aberdeen has not had much of a good rep.
I would go to Motorwerks and they send them off to pristine wheels I think it is.
Never heard a bad word about that route.