<html> Hi David,               Use 50% common rubbing alcohol and water, leave for 24hrs to dry naturally, this will prevent over shrinking. Do not dry with hot air. All drug stores carry it,  $2 at most. <G> Roger At 08:34 AM 8/27/01 -0700, you wrote: <blockquote type=cite cite>1.  I installed a set of Renner wippens on a piano about a year ago and its starting to have problems with the jacks getting sluggish.  Humidity is doesn't seem excessive and I haven't had this problem with Renner before.  I am wondering of methanol treatment can be used effectively here.  The bushings are clearly too tight, it's not just a lubrication problem.  2.  SF Bay Area techs:  where can I get methanol? </blockquote> </html>