Nothing good can come of a sloppy pilot bushing, but I haven't seen that happen. Maybe the clutch disc is getting cocked as the pedal is depressed, allowing the back side of the diaphragm fingers contact the spring hub.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!