Just curious if anyone does more than rely on their hands to judge how evenly the entire piano responds at the softest possible playing. In an action that is well regulated and balanced with friction +/- 0.5g from key to key and hammer strike weights evenly graduated using a Stanwood curve - I do not have confidence in my touch while playing chromatic scales to judge ppp playing evenness. Sometimes a key will not hit the string and it is not consistent, it will vary across the piano so I blame my lack of even touch. I used Spurlock gram weights, set on key ends (like when measuring down weight) and let it free fall in a controlled manner, adding or taking away weight to zero in on a number that could mean something, like how many grams to get the hammer to contact the string. One gram less gets no sound. Did this with and without sustain pedal. Suprised to find discrepancies of up to 6 grams and the discrepancies stay about the same with or without the sustain pedal. Any opinions here - am I splitting hairs? Does the above sound like a valid test? Also, I am a bit puzzled about how to account for the discrepancies. As all pinning and key frictions are very close, it could only be a mass thing? Any thoughts on this. Gene
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