For the fluting across the top I have another jig that will allow the piece to slide thru it. I mark off lines across the work piece 3/8 inch apart and slide the board up to a mark and again using the 3/16 inch fluting bit I cut across one by one. This part is time consuming because I cut a groove, turn router off, unclamp work piece, slide up to the next mark, clamp it down so it doesn't move, start the router and plunge in to cut groove. Repeat what seems like a million times. One mistake and its firewood and a do over.