<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=iso-8859-1" = http-equiv=Content-Type> <META content="MSHTML 5.00.2614.3500" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Dear list, some months ago I detailed = an event concerning a steinway m that I service in our local library. Some may = recall that a pianist had run a room humidifier for several weeks in sept. and = oct near this piano. The pitch was 60 cents sharp !. ( I've since made = a proposal to the board for a climate control system.)   = Update... @ 30% humidity ,Tuning has been stabilized and block, board , ribs and bridges = so  far are fine. My problem now is in seized action centers. The = action was reconditioned and regulated five years ago  . polished keypins = and capstans, bolstered and  lubed knuckles , lubed rep springs, = and balanciers etc , etc . Very little teflon work was needed and the piano = had been playing well. I spoke with a Steinway tech  from our local dealer = in Boston and with Kent Webb @ S+Sons N.Y.seeking advice today. Both felt that the = variable in this actions performance was this high humidity = condition,and both suggested protek as a what have you got to lose  attempt to free = this action. On a sample hammer I went from one swing to three with the = protek , Better, so I applied to all centers but its still very sluggish. My questions: What is actually happening to the bushing to cause this and</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2> Short of an action rebuild, Do I = repin every center, and if so what happens when we go back to higher humidity . = Thanks for your responses     Tom = Driscoll</FONT></DIV></BODY></HTML>