Don't know anything about tung oil. I've decided to use Fiebings leather dye on the cleaned wood. Probably a combo of mahogany and dk. brown. I'll experiment with putting it on with a cloth vs. a sponge brush. When I was building custom wood arrows, back in the 90's, I could wipe 12 shafts down with alcohol dye. By the time I got to #12, #1 was dry and ready to dip/seal. I'm trying to decide what kind of sealer to put over the stained wood. Wonder how spraying the pieces with an exterior poly ureathane[satin finish], steel wooling between coats, would do? Oh well, I can't hurt this ole stock too much, so it will be fun experimenting.
Mad Dog