[pianotech] Regulation mystery

[Ron Nossaman]

On 10/24/2010 4:47 PM, John Formsma wrote:
>Rather than adjusting the capstans each time, I
> insert small pieces of bushing felt (or some other shim) under the
> hammer rest rail. These can be removed after the next humidity change.

Likewise, starting with the very first tuning of a new piano. They're 
usually high right out of the box.
Ron N