Hi Ron, Great class in Salt Lake City! Best rebuilding class ever. To those who couldn't attend, this class really needs to come to the National convention and/or other conventions. Jim Busby (Ron, Below, #47 in my list of possible innovations/changes for my rebuilds...) Bridge agraffes have been discussed long and often on Pianotech for years, and a lot of us think they are a good idea. While I seriously doubt they are or ever will be as cheap to produce as conventional notching and pinning (agraffes need to be positioned and secured, requiring materials and labor beyond the cost of just producing the agraffe), they do present a more secure and climate tolerant alternative to conventional pinning in solid hardwood caps. They also provide considerable added mass over conventional pinning, which is the primary reason for that increased sustain everyone mentions. Until such things become available for rebuilders, some of us are realizing benefits in that direction with laminated bridge caps and mass loading bridges. Ron N
This PTG archive page provided courtesy of Moy Piano Service, LLC