I like the procedure of first coat being cut with mineral spirits 1/1 allowing the mixture to soak in deeper. 2nd coat 2/1 and wipe dry after an hour or so. 3rd coat straight tung oil applied in thin coat. Wipe dry. 4th-6th coats usually 24 hours curing, wet sand very lightly with 800 grit. Finish coat. Wipe daily for a couple of days to remove any residue or bleeding of finish. Let cure for a week or more and finish with Johnson's paste wax. Week later with a coat of Renaissance wax.
Please make a sample board with your finish on one side and and the same finish on the opposite side but leave out the mineral spirits. Then cut the board in half, wait a day and look at the difference in penetration. Solvents improving penetration is a myth. And they create issues in other ways.
