Last night I pulled the clutch plates off to inspect for wear and also to see if I had the skills to do the '01 clutch conversion (adding the anti-judder spring and plate). When I got all the plates out I noticed on the clutch boss that the springs had worn grooves into the posts that they're mounted on. Has anyone see this before? Is it a problem (other than the particles generated). Out of curiosity I pulled the oil filter out and it didn't have any shavings or particles on it. What I'm really worried about is my reassembly causing the same kind of wear but in a different spot on the post creating new particles. Any advice would be appreciated.