<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; "><BR><DIV><DIV>On Nov 4, 2005, at =
9:33 AM, <<A =
href="mailto:lafargue@bellsouth.net">lafargue@bellsouth.net</A>> =
wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE =
type="cite"><P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT =
face="Helvetica" size="3" style="font: 12.0px Helvetica">Key dip =
is approx 3/8".</FONT></P></BLOCKQUOTE><DIV><BR =
class="khtml-block-placeholder"></DIV><DIV>I wondered if this might be =
the case. Don didn't mention what the spec was, but I'd say 3/8" is =
waaaay shallow. The shallower the dip, the less movement the =
backcheck makes during travel, so what's happening is to get the hammer =
to check anywhere inside of an inch, you're having to regulate the =
backchecks too close to the tails at rest, causing them to catch on the =
way up, and yes, they might even catch on the way down.</DIV><DIV><BR =
class="khtml-block-placeholder"></DIV><BLOCKQUOTE type="cite"><P =
style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" =
size="3" style="font: 12.0px Helvetica"> Sorry Ron, I still can't =
see how checking height would affect</FONT></P> <P style="margin: =
0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="3" =
style="font: 12.0px Helvetica">that.<SPAN =
class="Apple-converted-space"> </SPAN></FONT></P> <BR =
class="Apple-interchange-newline"></BLOCKQUOTE></DIV><BR><DIV>It's a =
combination of checking height and too shallow of dip. I think most =
Asian pianos use 10 mm, but I don't have a block for that, and I'm not =
sure what the exact conversion to inches is. Most of the time, I =
shoot for somewhere closer to 13/32" in Asian pianos, and that usually =
works.</DIV><DIV><BR =
class="khtml-block-placeholder"></DIV><DIV>Jeff</DIV><DIV><BR =
class="khtml-block-placeholder"></DIV><BR><BR><DIV> <SPAN =
class="Apple-style-span" style="border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><DIV>Jeff Tanner, =
RPT</DIV><DIV>University of South Carolina</DIV><DIV><BR =
class="khtml-block-placeholder"></DIV><BR =
class="Apple-interchange-newline"></SPAN> </DIV><BR></BODY></HTML>=