40 years ago my mentor taught me how to install a 58 Chevy V8 valve spring between the back side of the soundboard and a frame crossmember to liven a flat board. Does any still use this technique? I have a customer with an old Knabe grand that has no downbearing in the middle sections of the board and the tone is very thin and nasal. A new soundboard if financially out of the question. After all these years, I don't recall if this technique was effective or not. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20081206/01aaf43f/attachment-0001.html>
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