I've always understood that the ribs were thrown into the hot box for the sake of the glue joint not the emc. Given the grain orientation, doesn't seem like it would make much of a difference to the compression one way or another. Jude Reveley, RPT Absolute Piano Restoration, LLC Lowell, Massachusetts (978) 323-4545 -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080126/e8b30d2d/attachment.html
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