I have been doing a bit of work on an old square grand. The hammer flanges are long and are split horizontally through the flange center. There is a screw that can be turned to tighten/ loosen the bushing fit to the center pin. I'm sure many or most of you have seen this. This is so cool. Is there any significant disadvantage to such a design? I can see that with the flange on the modern grand, size/space would limit the possibilities. Seems like it would be worth some level of redesign to be able to adjust the friction in this critical action center with the turn of a screw. Terry Farrell
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