PersonalTraynor: Thanks for the info, good to know.

BTW, If you have the time, I would love to see a photo of that tung-oiled fretboard!
Pilgrim: Thanks, nice to know there's nothing to worry about. I guess I'm a bit OCD when it comes to instruments, as I grew up with a dad who meticulously maintained his classical guitars.
Thanks for the recommendations on waxes, guys. I kind of like taking care of my guitars, and I have a no-finish superstrat that I wax with beeswax once a year or so, which makes the wood look really great. Haven't tried other products, but might give them a try in the future on other guitars.
I also have a nitro-finished strat, that I haven't yet dared do anything to out of fear of somehow ruining the finish, lol.