I have just spoke to the person that fitted the pads when I was away and he is saying yes he had to take a very small amount off each side of the sliding face as the paint was bubbling stopping the pads from sliding perfectly. But again I said on more than one occasion that the pads were not fit for the track and new pads were needed. Not the wrong pads as said.
Touching the ball joint I have no idea, 100% no idea why I ran these on my s3 and now they are hitting yours, seems it has already been explained. Again I continued to say to everyone please do your own homework for mk5 fitment. As I had to do from TT to s3 and got it wrong.
Bleeding you are saying they have not been bled, 100% they have I went from oem fluid to AP racing fluid I can give you the exact date and mileage from the book.
Pudding the discs did not look like that when I sold them, those look like they have been stored at the bottom of the sea the amount of corrosion on them.
Cheers, Stevie.