<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2900.2912" name=GENERATOR></HEAD>
<BODY
style="WORD-WRAP: break-word; khtml-nbsp-mode: space; khtml-line-break: after-white-space">
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=395185810-13092006>Fred
makes an important point that, friction increase or not, there may be some other
bad effect to deviating from the line. However, what we're talking about
is what to do if the existing string height doesn't allow optimum configuration
of the action parts. The most common scenerio I've seen is string height
too high. </SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=395185810-13092006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=395185810-13092006>If you
maintain the optimum line in this case several things may
result:</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=395185810-13092006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=395185810-13092006>1. Hammershank swings above parallel to
keybed</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=395185810-13092006>2. Hammer overcenters at
strike</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=395185810-13092006>3.
Hammershank so high above (nonadjustable) rest felt that the action locks up on
certain blows</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=395185810-13092006>4. Jack may jam into felt at the back of the rep
window</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=395185810-13092006>5.
Loss of mechanical efficiency</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=395185810-13092006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=395185810-13092006>Or you
can raise the stack, sacrificing the line and:</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=395185810-13092006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=395185810-13092006>1. The
wippen cushion wears out faster.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=395185810-13092006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=395185810-13092006>This
is the sort of real life choice that we have to make all the time in action
work. What would you do? </SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=395185810-13092006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=395185810-13092006>Bob
Hohf</SPAN></FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2><BR></FONT> </DIV>While the friction created by deviation from the
line (point of convergence of the arcs) may not be measurable, it may still be
significant over time in the wear created on the felt, leading to accelerated
"lowering of the hammer line" and to more friction down the line when the felt
becomes more cupped. </BLOCKQUOTE></BODY></HTML>