Why tuning pin bushings/why not?

[Farrell]

How does a pin go about "wallering"???? I'm trying to picture this. Is this something an alligator might do?

Terry Farrell
  
----- Original Message ----- 
From: "gordon stelter" <lclgcnp@yahoo.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Wednesday, October 23, 2002 11:14 AM
Subject: Why tuning pin bushings/why not?


> I've always thought bushings: 1) Keep crap out of the
> pinblock.
> 2) Provide a bit of humidity barrier.
> 3)Keep the pin from "wallering" out the hole (as they
> say here in the South.
> 4)Add a bit more resistance to string tension.
>      Why did so many high-end manufacturers not use
> them? What is the educated opinion on this today?
>      Please inform.
>      Thump
>