My clutch was knackered at its first 6000 mile service.
Well, the plates were a little curled up at the edges and the basket had some serious grooves. But it never grabbed or lurched and was as smooth as a smooth thing.
I've done over 18k on the original basket, second plate set went in at 11k. plates getting a bit worn now and basket needs another filing, but may replace this time. Have been told that the inner drum also wears behind the main nut and washer???