My wiping varnish is a 50-50 mix of good quality mineral spirits and Pratt & Lambert 38 gloss alkyd varnish. I apply with a rag as quickly as possible and immediately wipe as dry as possible with clean paper towels. If I dally too much, I find that the wiping varnish develops streaks when I wipe dry. I expect I would get worse streaking if I didn't thin the varnish as much. Experiment on some scrap plywood.