>... If the underlevers are allowed unlimited upward travel, a strong >blow can >send them over the top of the engaged sostenuto rod. This doesn't happpen >with the unsprung sos. tabs, but the later models will allow the underlever >tab to go above, and when it does, it stays up there! >Regards, >Ed Foote RPTs Ed, Conrad, List, Thank you for this additional information. For my benefit, let me be certain I understand your comments. With the damper and sostenuto system properly regulated, with the sostenuto pedal purposely engaged, and for some reason the damper stop rail is not regulated properly, but is set at its highest point, then any piano playing during this time that has strong blows can cause other notes to hang up on the engaged blade, that is, on the models that don't have the tabs with the springs. This is what you are saying, yes? Keith McGavern Registered Piano Technician Oklahoma Chapter 731 Piano Technicians Guild USA
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