Charles writes: << pre-'84 is also produced at the NYC factory, but has a 15.5 mm knuckle set >The latter shank will require more counter weight in the key (or a >helper spring on the rep), but permits a shallower dip and wider blow. >> Greetings, It may require that extra weight or spring, but it could be that what that action really wants is a small hammer? Regards, Ed Foote
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