Regulation bench bedding

[Keith Roberts]

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I just replaced the brackets on a Y&C. I brought it home so I could do =
it on a bench that was the right height. I set my boards to string =
height and roughed in blow distance and jack position( 1/4" out). =
Started through letoff and the sharp dip was about right but the whites, =
the dip was so shallow the hammer rise was shy of letoff by 1/2". I know =
you can't set dip out of the piano and realized I should have measured =
the dip because now I'm wondering if the tech that wound all the =
adjustments out, messed with the dip so as not to break the jack off =
against the stop. In this case, the drop screws came up 3 turns and the =
let off buttons 5 turns. So now I'm thinking I should have shimmed the =
balance rail up to get enough dip so I could set let off. My aching back =
tells me I'm doing way too much work in the piano. It would be so nice =
to duplicate the bedding, so the amount of refinement in the piano was =
minimized. Dale Erwin said I could take sample dip reading of every C =
and shim the rails to duplicate the dip.=20
Does anybody have any other methods? Would it be better to take the =
sample dip readings at the notes next to the bedding bolts.
Your thoughts please.
Keith R

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