In Don and Randy Morton's class on the grand action, given in Albuqueque, Randy mentioned that the reason a smaller knuckle may give a better results is because the centerpin location on the hammer flange may be too low. He stated that his research indicates that by raising the pin's location at the flange by 2mm on the Steinway shanks and flanges and I think, the other styles as well (Tokiwa), gives the best results when replacing parts, because that is where the original placement was. FWIW. --- vince mrykalo rpt ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The facts all contribute only to setting the problem, not to its solution - Ludwig Wittgenstein ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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