Hi Steve. RC simply means the ribs themselves are crowned. It says nothing about how much compression in the panel is use to also support crown against the downbearing of the string plane. RC & S clearly specifies that the crowned ribs are doing nearly all that job. The only compression in that kind of board is present to work against the tendancy of a board to pull apart during dry periods. If you dont understand what compression is about then you are going to need a more thorough explanation. But there is tons of stuff in the archives about it. Cheers RicB Hey Now, One for the dumb kids class? I know it was mentioned here a few days ago...but as this thread has continued on, I need some review. What is the difference between RC (Rib crowned), and RC&S? I thought someone said here a few days ago that they were ecentialy the same. True? Another post mentioned something about mesuring the crown with a string or something like that. Is there a simple explanation of that process? The only belly work I do is in the gym. It dosn't seem to do much good though. This has been a very informative and entertaining discussion. With new knowlege comes more questions. The S&S thing seems to have finally run its course. Be nice. Steve Pura Vida
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