Gabe, I have used "Rustins Danish Oil" with good success which is tung oil blended with synthetic resins and some vegetable oils. I find it very durable and easy to apply. Years ago I got some off- cuts from Roger Vardy and prepared them the same way as a gun stock and then hung them from the clothesline to see how they would weather. For the first nine months they didn't change (autumn, winter spring), only after hanging in the Aussie summer sun for weeks on end did they start to fade and haze.

Waidmannsheil.