Finishing question

I make pieces that are often a little punky OR there are areas/crevices that dont get sanded quite as well.

I like to use an oil or oil/wax finish. Close to the wood. Not much of a film. And these areas just drink it up and look a little dull. They def dont take a polish

I have pure tung oil, a block of pure carnauba and a can of osmo poly x.

I feel like there is something I can do with the carnauba. Either melt it directly into these areas or melt it into the tung oil for a thicker paste wax(esque) treatment.

What do yall do?