Dave, "in the wood" and "on the wood" have a rough and ready correspondance to our thinking about finishes with few solids and driers vs. a catalyzed wonder poison which you can spray, cut down once, and then "hang" on the surface with a very fast build per coat. Our little quibbles about depth of penetration aren't with you. I have no idea how you get an "ultrathin" finish. Can't imagine anything much thinner than BL and beeswax.

jack