"I always thought that sound was from worn bearings."
I hope this doesn't start the 'chatter vs non-chatter'
flame war again.. some people like the sound, some don't.
The sound comes from wear on the support sleeve, which
gradially becomes elipitcal instead of circular due to
lack of lubrication wearing it down. Teflon lubricant
takes care of the problem (if you consider it a problem..)
