Jeff, One question I haven't heard yet: are the hammers custom-bored or standard bore? If they are a set of standard bore Steinway hammers, I'm wondering if there may be an excessive blow distance because of varying string height (can be as much as 6mm from section to section), combined with a short (standard) bore and hammer tails that are also too short. All of these factors would contribute to the regulation problems of your particular piano. Danny Dover Dartmouth College Hanover,NH
This PTG archive page provided courtesy of Moy Piano Service, LLC