Anyone know how to correct repeating on otherwise good DDs? I believe it's a reproducer problem, as I've been using the same one on two machines (temporarily).
I had noticed that the limit pin had a tendency to drift to the left when I lowered it; and I believe it must occasionally be coming up against the loop during play. This happens on otherwise clean discs with minimal eccentricity.
You may want to check and see if the weight has free movement laterally at the rear of the Reproducer where the screw is. If the movement is stiff, this will cause repeating as the weight/limit pin can't keep up with the feedscrew because it is binding. You may have to disassemble it and polish the shank of the screw and the hole the screw passes through.