<< With a shallow dip, any variation in hammer tail filing, check alignment might be very critical. Even if the pianist does really bottom the key, there's likely to be all sorts of misses in the tail/check interface that is normally taken care of by the deeper dip. (.400" for S&S now, I believe.) >> Greetings, Actually, misses depend not on keydip, but aftertouch. If a pianist wants an extremely shallow keydip, it is a simple enough matter to raise the hammerline and slightly move the backchecks proximally to maintain the same degree of checking insurance as before. The tech may need to add additional "rest felt" to prevent the action from capsizing, but there is no need to lose the checking dependability. Regards, Ed Foote RPT http://www.uk-piano.org/edfoote/index.html www.uk-piano.org/edfoote/well_tempered_piano.html
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