<!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 6.00.2600.0" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Ron,</FONT></DIV> <DIV><FONT face=Arial size=2>Would gluing on an uncrowned long = bridge not force some of the valuable and available crown out of the rib/board assembly?</FONT></DIV> <DIV><FONT face=Arial size=2>Owen Greyling, RPT Ontario, = Canada</FONT></DIV> <DIV> </DIV> <DIV>This is why crowning the long bridge is of little benefit - if = <BR>any. It doesn't help support crown. </DIV> <DIV>Ron N</DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV></BODY></HTML>