The a4 came with a spec PP and stock disk.........

I started driving it in June, swapped out for a SouthBend clutch kit in August........ The southbend is a stiff but reasonable PP with a disk that doesn't grab.... You can see the difference in PP thickness above from the amount of "spring" (look at the gap between the two parts of the PP and the angle of the fingers).
I woulda gone CN through Tom, but (at the time??) they didn't make a kit for my car.