<!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 size=2>I've been reviewing some articles on setting = downbearing and there seem to be a few different schools of thought.  It = seems (and reasonably so) that choices about the amount of bearing will depend = on the board and the amount of crown.  But what are the general = guidelines as to how much, under what circumstances might you vary that amount, and in = which direction, and what are people's general procedures including = prestressing vs not prestressing the board?</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>Thanks in advance.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>David Love</FONT></DIV></BODY></HTML>