<!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 6.00.2719.2200" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Sarah,</FONT></DIV> <DIV><FONT face=Arial size=2>About the regulation (hammers = bouncing). Depending on where the Hamilton was, the hammer butt buckskin where the jack = contacts the  hammer butt becomes worn after many years of playing.  If = the regulation is set to specs without repairing that buckskin, there is an indentation in the buckskin that the jack can not escape and that causes = the "bouncing" action. That is the reason the in can't be regulated = properly. Look at the buckskin of a new hammer butt and compare it to the hammer butts = in your Hamilton, you will see the wear. OR if a butt or two didn't have the = jacks centered on the buckskin, you can see the ridge left on one side or the = other and then you can compare how much wear is visible.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Ken Gerler</FONT></DIV></BODY></HTML>