<html> <body> Wim, My first thought would be damper spoon adjustment and/or damper spring strength, assuming that blow, key height & dip are comparable.  Avery At 10:09 PM 8/6/2003 -0400, you wrote: <blockquote type=cite class=cite cite>Can anyone on this list give Marty some answers. Wim In a message dated 8/6/03 3:11:02 PM Central Daylight Time, pianodoctor@adelphia.net writes: <blockquote type=cite class=cite cite>Subj: [Experts] lighter action in same model pianos Date: 8/6/03 3:11:02 PM Central Daylight Time From: <a href="mailto:pianodoctor@adelphia.net">pianodoctor@adelphia.net</a> To: <a href="mailto:experts@ptg.org">experts@ptg.org</a> Sent from the Internet I have 2 pianos sitting next to each other.  Both new Yamaha P600 45`` pianos. One has a much lighter touch (action) than the other.  Can you give me some reasons why, and is there any adjustment that can be made to stiffen up the lighter action? Thank You. Marty Cipolla, Locust Grove, VA</blockquote></blockquote> <x-sigsep></x-sigsep> ______________________ Avery Todd, RPT Moores School of Music University of Houston Houston, TX</body> </html>