I just finished building a cutting board which measures 13 x 19. Unfortunately, I wasn't careful enough to make sure during the glue ups that it was perfectly flat so now it has a bit of a wobble when laid on a piece of granite. It's too wide to fit on my 12" J/P. What is the best way of flattening the board? Fortunately, it's about 1.4" thick so I will still have plenty of board left. Ideally, I think I should find someone with a 16" jointer to flatten one side so it can then be run through a planer. I don't have to take much off but I want it to be perfectly flat. It's an edge grain variety so I don't have to worry about tear out. Ideas?