<HTML><FONT FACE=arial,helvetica><FONT SIZE=2>In a message dated 4/27/0=
3 7:12:21 AM Pacific Daylight Time, mjbkspal@execpc.com writes:
<BR>
<BR>
<BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-=
LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Between let-off and impact,=
the jack, rep lever, and string are not in contact with the knuckle. =
The list of forces acting on the hammer/shank assembly consists of gravity a=
nd center pin. period. Both are acting to decelerate the hammer.=
</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial"=
LANG="0"></BLOCKQUOTE>
<BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Ar=
ial" LANG="0">
<BR>Mike,
<BR>
<BR>What about the flex of the hammer shank? When the jack releases, i=
t is no longer forcing the shank to flex, thus allowing it to spring back in=
to its original form a nano-second before striking the string. Couldn'=
t that cause acceleration of the hammer head?
<BR>
<BR>Dave STahl</FONT></HTML>