[pianotech] center pin function

[Ron Nossaman]

Keith McGavern wrote:
> Picky not, but I do see this reasoning, Ron.
> 
> As a result of the movement of the hammer assembly, a center pin pinned 
> properly has to follow suit, but in and of itself, it does not move or 
> rotate of its own volition.
> 
>  From my viewpoint a semantics lesson only.
> 
> No foul on anyone's part.
> At least, I certainly didn't feel I had committed any personally.
> Nor did I feel I laid blame on anyone else.
> 
> Just a continuing educational clarification.
> 
> Keith

Simpler to indicate that the bushing is the bearing, and the 
birdseye, the clamp. That ducks the whole mess.
Ron N