Piano touch too heavy

[Ted Simmons]

Thanks to all who responded to my question about the heavy touch on a small
grand.  The action is what I would call a compressed action and I followed
Kimball's LaPetite specifications in the Piano Action Handbook.  Here are
the downweight and upweights measurements before & after regulation:
        KEY         DOWNWEIGHT            UPWEIGHT
                BEFORE     AFTER        BEFORE  AFTER

        C2      52          50          25.9    25.0
        C3      52.5        50          32.8    29.0
        C4      52          44          29.7    29.7
        C5      52          48          37.6    37.0
        C6      49          47          34.8    32.0
        F#2                 49                  28
        F#3                 54                  22
        F#4                 49                  32
        F#5                 41.5                29
        F#6                 46                  31
I didn't take F# measurements before regulating.  I should explain that I
had my weights calibrated long ago on a digital scale accurate to a very
fine degree. That's why the decimals apprear in some of the weights.  I
want to point out that the action was grossly out of regulation.  I don't
understand how the original readings weren't a lot higher, especially on
the downweight.  Anyhow, the before and afters don't tell me much, Newton.
Do you see anything in them?

Ted Simmons


>The numbers you quoted reflect an under leveraged action.  If there
>are only two or three weights in the bass section you might consider
>reweighing it for optimum balance weight taking into account the
>friction.  After doing all everyone else recommended take a few more
>measurements, like every C, both up and down weight and every F# to
>reflect any difference in the sharp key leverage.
>
>Post them to the list or to me and we will discuss them.
>
>                Newton