Repitition problem- S&S

[David ilvedson]

I have heard it both ways...rough going out and smooth coming in 
and the reverse.  What can you do to smooth the knuckle leather 
if you wanted to?  

David ilvedson, RPT
Pacifica, CA

> From:          A440A@AOL.COM
> Date:          Wed, 23 Sep 1998 11:53:53 EDT
> To:            pianotech@ptg.org
> Subject:       Re:  Repitition problem- S&S
> Reply-to:      pianotech@ptg.org

> Rob asks:
> >
> >Any suggestions? I have never come across a pianist so demanding for this
> type
> >of
> >repition but I would like to try and please him. 
> 
>    It seems that there was softer wood being used in the action parts for
> several years in the late teflon era. The grub in this vintage whippen is
> often dented.  This will affect the spring behaviour.   Check  the springs'
> feel as you depress the balanciers with your finger.  An erratic feel here
> will often cause abberations in extremely fast play.  The distal radius on the
> tip of the jack is also suspect, as it can delay jack return. 
>      Are the backs of the knuckles smooth?  We often get so caught up in the
> impelling surface that we forget that the return path down the back of the
> knuckle warrants attention. 
> Just some thoughts.......
> Regards, 
> Ed Foote
> 
> 
David Ilvedson, RPT
Pacifica, CA
ilvey@jps.net