I found the same to be true with cleaners degrading wax, and posted about that in another thread. Interesting the compromise to lacquer finishes as well. I would prefer just using oil, like I would on any other steel barrel, but did try Formby's and liked the application and look. That said, feedback I was given here stated that the tint of the tung oil would mute the contrast. I'm not convinced the tint would really make much difference to the naked eye.