Thanks again for all the suggestions.
I looked at the pics that Loope mentioned and really liked the white writting once the Osage aged, so I went for that look. I couldn't get the acrylic archival ink that was mentioned in the article but I did find some artist pens that worked well, are waterproof and chemical resistant. They are called "Jellyroll Classic" bright white ink 0.4mm.
They wrote pretty good over the spar polyurethane finish and then I put 2 coats of spray spar polyurethane over the writting after it sat overnight.
The bow is a HS graduation gift for my wife's nephew. He s good kid and could shoot my bow better than me after shooting it for just five minutes. With any luck I'll have him and his younger brother at the classic next year and cultivate a couple of young primitive archers.
Here are a couple of pics of the bow. It was a Osage billet spliced blank I got from Matt W at this years classic. This is my second bow and got help from Gary Davis on how to put a small flip on the tips without a jig, and help with the tipoverlays from Cody and several others.
My next bow will be one from a Osage stave I harested and split this past winter and I hope to work on it at Elm Hall in a couple months!