<html> <body> I pull the felt punching off to make sure it stays clean.  Below that, I haven't come to worry about yet. Andrew At 08:32 AM 8/3/2006, you wrote: <blockquote type=cite class=cite cite="">Me, I just do the top. I guess I can see an argument for doing the bottom, but it seems far more trouble than it is worth. We don't want to encourage the keys to pop up and down (though if they pop up - and we see by high speed videography that they do - we want them to fall back down). I think if the pin is bad enough to need it at the bottom, it should probably be replaced. It's bushing longevity, plus keeping bushing friction to a minimum while maintaining close tolerances, that I am focused on. Regards, Fred Sturm University of New Mexico <a href="mailto:fssturm@unm.edu">fssturm@unm.edu</a> On Aug 2, 2006, at 7:15 PM, Alan McCoy wrote: <blockquote type=cite class=cite cite=""> <blockquote type=cite class=cite cite="">(just concentrating on the areas of the pins that actually contact the</blockquote>bushings). Hi Fred, Do you Flitz the pin at the bottom where pin contacts balance hole or just around the top where pin contacts bushing? Alan -- Alan McCoy, RPT Eastern Washington University <a href="mailto:amccoy@mail.ewu.edu">amccoy@mail.ewu.edu</a> 509-359-4627 </blockquote></blockquote></body> </html>