Pretty sure if your car was tuned, as soon as they scan it there would be a TD1 code.
I agree. I'm yet to get an entirely clear answer on that. VW corporate didn't even know what that was, but they said nothign was on file like that. I called another dealer, who didn't knwo what that was, and said they didn't see anything like that on file for the car. I think i'm good. I had VW corporate put some of this in writing also.
FWIW, i also found a Youtube video comparing a stock tune with APR stage 1 with a boost gauge installed inteh car. The car clearly runs and holds 15psi+ of boost in first gear. Frustrating dealign with moron dealers.