Lightly buffed (OO steel wool) between every coat of Tru Oil. I only put 4 coats on this bow, it needs the pores filled and another coat added. Thats where my gun smith friend comes in. He makes a Tru Oil slurry to fill and then sand smooth after drying, then adds one more clear coat. He said it will look like granite when we are done. I have seen his work for 15 years, I trust him!