Having flirted with tap dancing on glass I am able to use the Ronsen Products on our rib crowned boards. But we rib at approx 6% for rib crowned stuff. The difference in types of stiffness is an interesting idea. So,isn't stiff just ...stiff? Dale S. Erwin I understand what you were saying. I'm just not that sure grain angle has all that much to do with hammer hardness tolerance without some experience. I do know that folks making rib crowned boards with a higher level of panel compression are using Abels, Renner Blues, and other such rocks successfully. > I also think that this "stiffening" behaves different tonally than the > stiffening created by a CC board that has hit its compression limit. I think these are entirely different critters than CC boards, in how they work. Ron N -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100715/09455344/attachment.htm>
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