Hey Dale, I know you were just shooting figures off the top of your head, but just for the record, it would be 4mm deflection on a 15" radius over 15". Hardly scant, IMHO but God bless your soul. I'm all for a healthy dose of crown up there and I have been, admittedly, way too conservative. Best, Jude Reveley, RPT Absolute Piano Restoration, LLC Lowell, Massachusetts (978) 323-4545 I crown these ribs as tight as 15 ft but even so on a 15 inch rib were only talking scant MM or 2. But I like having something to push against that resembles real crown. Makes sense? Dale -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080128/e8dee5af/attachment.html
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