Hello. I have a bunch of 2" black walnut slabs that are now at 5-5.5% moisture. I would like to do a rough sanding to see the grain shape and figure so that I can match the wood to the current projects. How would you accomplish that? I am plan on using a CNC router to plane them. I have never done that before and do not know how much that process will show the grain. If sanding is the solution, can I use a floor drum sander for efficiency? Thank you all. Kirt