Ron, I'm quite an experienced (and muscular ragtime/stride) pianist, and yet I found this "bobbling" hammer problem on one of the brand-new, large, Yammy uprights I serviced at a local church. I do not remember the remedy I effected at this time, and vaguely remember that it was not what one would expect; but am not convinced that the problem was due to the pianist's "attack". I do, though, vaguely remember mentioning it on this list, and after deducing and effecting a solution, providing details. (Back in the early 2000's) Peace Thumpe -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20121202/9e1b785c/attachment.htm>
This PTG archive page provided courtesy of Moy Piano Service, LLC