Reply by Ripthorn

If you are really looking to accentuate the curl while maintaining the natural color, I have actually found that Krylon crystal clear coat (satin) outperforms any oil I have used for the same purpose. I have used that finish on three guitar necks and they have all turned out remarkably well. Of course, surface prep and then sanding/buffing the finish goes a long way.

-- Brian T. - Exact science is not an exact science