The .html did not produce what I wanted it to. But hammer weight on 19 was 10.2 and 20 was 9.6. That .5 g difference can be narrowed by the judicious placement of the appropriate SW shank. A lighter 1.6 on 19 and a heavier 2g shank on 20 bring the resultant SW's to 11.8 & 11.6. in general, the heavier shanks are in the bass but according to where the mose weight is needed, the heaviest shanks may end up in the middle. It all depends on the weight graduation of the set of hammers and the ultimate SW curve desired. Jon
This PTG archive page provided courtesy of Moy Piano Service, LLC