I just used a normal CA/BLO on my last one, but I wiped it down very thoroughly with denatured alcohol before I put on the finish. If you try this make sure the denatured alcohol is completely dry. I thought the results were quite good. Not perfect, but the best I've gotten so far. I also used renaissance wax after finishing. I prefer a natural finish on BOW if its my pen, but this one needed to be very durable so a natural finish wouldn't suit it.
The best option is to experiment and let us know what works best,
Good luck,
-Joseph