clatters or what i call a clatter can sometimes come from a clutch that has a lot of play in the "lands" that contact the friction plates. some call it "notching". in severe cases it leads to the land breaking away from the base of the basket and the large piece(s) can cause some severe damage. there are companies who machine the basket to take the notches out, and those who file their own. that can make the clutch action acceptable, but if inserts arent put in to take up the space you get lots of noise. the filing or milling still leaves the breakage threat. so my guess is the outer cover is off yours soon!!