I hope there have been improvements since the 80's-vintage one I worked on. Regulation was a nightmare of opposing spring tensions: hammer return vs. rep spring. --Cy-- Cy Shuster, RPT Albuquerque, NM www.shusterpiano.com www.facebook.com/shusterpiano On Feb 5, 2011, at 3:06 PM, ed440 at mindspring.com wrote: > > I also would like to upgrade my u-1. Darrell fandrich said he can supply actions to fit. > Ed Sutton
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