Adjusting Action Centers

[Richard Moody]

| > 1.   With a voicing needle poke two to 4 times in the bushing around
| > the pin.  This is to compress the felt around the pin.
|
| Old Chickerings show signs of this having been done, consistently with
| four dimples in the wood around the holes. There is something sold for
| doing this for keyboard mortises.
|
|
| Clark

I wonder if they had a four prong dimpling tool?   The voicing needle works
up to a point for key bushings. (keyboard mortises)  ---rm