steinway over hardened hammer

[jason kanter]

Please describe "needling up" ...
/Jason
----- Original Message ----- 
From: "antares" <antares@euronet.nl>
To: "Pianotech" <pianotech@ptg.org>
Sent: Wednesday, May 05, 2004 2:01 PM
Subject: Re: steinway over hardened hammer
<snip>
Ever heard of needling up?

friendly greetings
from
André Oorebeek