Hi David,
I think it was a vertical that they were talking about.
Yamaha also sells a 1gm shank clip for what you are describing. They were
designed to compensate for hammer reshaping.
Roger
comprehensive redesign approach later, you can simply attach small or large
>binder clips to the shanks. Get them at an office supply store, or if you
>are unsure, you can order them from pianotek. Lubricate the action
>thoroughly to try and even out the friction component (if the centers are
>sloppy repin where needed) and using gram weights add the clips and position
>them in or out until you get the desired weight. You will have to reset the
>repetition spring so you might try a few in each section first to be sure
>the the spring has sufficient strength. Once the clips are on, of course,
>remove the wires. You can do the job very quickly this way and the clips
>will stay in place.
>
>David Love
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