Two hammers/shanks with identical strike weights but one has a steel shank with a lighter hammer, the other a heavier hammer and a light wood shank will certainly have different inertial moments and will require different dynamic force to propel them. But in the real world hammers and shanks vary only slightly in their configuration, such as bore length etc. I haven't seen any data to indicate that these variations skew the meaning of strike weight significantly, although technically there are measurable differences. I would love it if one of us had, and took, the time to push a pencil long enough to come up with some analysis of inertial moments. Stanwood
This PTG archive page provided courtesy of Moy Piano Service, LLC