Has anyone done a study of the negative effects that occur to a tuning pin or the pinblock while tuning? I service a new-ish 7' Bosendorfer for a Boeing engineer, who is a hobbist with older uprights and we've been discussing the rigors the pin endures while being twisted and flexed, and also the affect on the pinblock. Dave Davis, RPT Renton, WA -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20061104/da203f71/attachment.html
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