For a 32” wide by 43” long coffee table I would like to use flatsawn lumber for aesthetic purposes. Clearly, if this were a relatively thin board say, 5/8”, cupping would be a problem. But it will be 1 ½” thick. The use of breadboards for stability will not be available with this design. Alternating grain patterns I have read is really not all that useful in the long run either. At 1 ½” do I need to be concerned?