<HTML>Thanks, Will.=  I kind of figured as much.  Since the restaurant was opening in = a few minutes, I didn't think it would be a good idea to examine more closel= y. Any idea how long it would take to replace the entire set so that I can = give them a fair estimate? Dave Stahl In a message dated 4/8/04 4:26:23 AM Pacific Daylight Time, wwickham@stn= y.rr.com writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-= LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"> Hi Dave! I've seen a lot o' interesting stuff with the disclaviers. One of the advantages of working for a Yamaha dealer! The regulation issue is pretty simple: uprights (MX80) can and should be regulated just as you would a normal piano. On one of these that's playing continuously the regulation should probably be done once every year or two. The regulation, as you've figured, has nothing to do with the piano regulation. There are felt punchings on top of the solenoids that do wear out and need to be replaced. Yamaha has them. It's a relatively easy fix to take the keys out, the metal cover off and replace the felts and that should cure the problem for some time to come. </BLOCKQUOTE> </HTML>