Pick an end, and start the first pass. you'll need a 1/2" router with a 1.5" dia. flat seat cut rabbeting bit. It looks ike a drum but with cutter blades on the sides and bottom where it flattens out the cut. Have someone else hold a vacuum if possible. This will create the...
I used this to flatten my top and it worked pretty well, but there were more than a couple of gotchas: 1. Jointing 2 lengths of yellow pine 8 feet long completely flat was a challenge (for a newbie) 2. Setting the router to JUST the right depth so it was deep enough but not so...