Getting ready to try it myself on a tactical I'm making for good ol' me.
I would think that there wouldn't be any kind of finish that you could put on it. From what I've read most makers take it to a medium grit and leave it grippy. Not the prettiest stuff but when you need to hold on I think it's pretty snazy.
What did you use to glue it up with? I was wondering if the Gorilla glue might not be a good option due to it's tendency to expand into little holes.
Charlie