<!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 6.00.2715.400" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Tommy: That is more that good enough. C 523.3 would put your A4 at 440.041 (+0.16 cents). Once you factor in a very, very, very small amount of stretch, you probably land right on 440 every time. </FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>Jason: You have that backwards: if C is "zero," then A would flatten with increasing stretch. But how much stretch to do you think is between C5 and A4 anyway?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>I took some time to take some measurements at a few different temperatures. I did find about a 10 cent range in extremes. But if you make sure that your fork does not feel hot or cold to the touch, you will probably be in a range that varies less than one cent. Both an A and a C fork will experience these differences, so temperature is not really a factor for choosing one over the other.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>20 F=441.729 (+5.26 cents)</FONT></DIV> <DIV><FONT face=Arial size=2>56 F=440.397 (+1.56 cents)</FONT></DIV> <DIV><FONT face=Arial size=2>98 F=440</FONT></DIV> <DIV><FONT face=Arial size=2>120 F=438.729 (-5.01 cents)</FONT></DIV> <DIV><FONT face=Arial size=2></FONT><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial><FONT size=2>Bradley M. Snook</FONT></DIV></FONT></BODY></HTML>