> Beg to disagree here sir. Case, rim, rasten, or belly rail movement have > little or nothing to do with crown retention or loss. Beg all you can stand Ron. I found it fairly easy to flatten a flat ribbed board before it's installation. Kind of fun actually. Remember Mason & Hamlin's old sales gimmick with the strip of soundboard material and business card? If a board can be moved but a few thousandths of an inch it can lose crown, I think. Further, I think you are correct in that most bad boards started out bad when installed. With the care taken in some factories it is amazing the we don't have more flat boards than we know of. Now, how do we resolve this issue? I suggest ribs at five inches from the coals! Pass the beer guys. Newton PS Ron has installed many more boards than I (2) and is brighter than me (IQ?) but I am right, even when I'm wrong I'm right, so there!
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