<!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 6.00.2800.1593" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>Bob Hull</FONT></DIV>
<DIV><FONT face=Arial size=2>Yes I taper/channel the whole set and sort by
weight. I am told that the stiffening is akin to I-beam construction but I am
not an engineer so consider that hearsay. Speaking of hearing just put a tapered
shank in the middle of the bass section amongst the hex and see if you hear
a difference. I do. I get a stronger 3rd partial most of the time and I like
that. I think tha doing this clears up the tone of the whole piano.
You should experiment for yourself. A factory channeled complete set is
available from Abel through Wally Brooks who was the first person to point out
the attributes of doing this for me. As I recall they are only
Hamburg specs but I have used them with success. Wally will also channel other
sets for you for a small fee. I am told that other sets are available
from Pianotek and others but I have not gotten any so consider that a rumor.
Usually I channel my own with a router gig and/or free hand on a belt sander. It
is surprising how quickly and uniformly they can be turned out which is why
i often don't bother with the router set up. I sort by weight to help smooth the
Strikeweight taper ala Stanwood. I hope we can get some slow mo video on the
difference someday.</FONT></DIV>
<DIV><FONT face=Arial size=2>Chris Solliday</FONT></DIV></BODY></HTML>