<HTML>Hello Ron. My answer is no! As a matter of fact. if the Rib glue joints are good, "shimming is a "cosmetic option.  & you could have 30 "cracks in the Board, & it would not affect the "tone", sustain & a few other things. I would rather spend the time making & installing a new Board, because we are working for the long term result. My opinion-Willis Snyder</HTML>