<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 5.50.4134.600" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face="Comic Sans MS" color=#000080></FONT> </DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000080 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=davidlovepianos@earthlink.net href="mailto:davidlovepianos@earthlink.net">David Love</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> March 10, 2003 4:44 = PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> compression vs rib crowning</DIV> <DIV><BR></DIV> <P><FONT face="MS Sans Serif" size=2> <DIV>Is the difference between rib and compression crowning one of = tone or longevity (or both).  </DIV> <DIV> </DIV> <DIV><FONT face="Comic Sans MS" color=#000080 size=3>Yes. The = rib-crowned board can be designed specifically to produce a certain tone time = after time with much better consistancy. They also last longer--both structurally = and acoustically.</FONT></DIV> <DIV><FONT face="Comic Sans MS" color=#000080 = size=3></FONT> </DIV> <DIV><FONT face="Comic Sans MS" color=#000080 size=3>Del</FONT></DIV></FONT></BLOCKQUOTE></BODY></HTML>