I never had good luck with that stuff and gave up on it years ago. There's so many other good finishes out there now I don't even consider try it again.
But if you can get it to dry, it certainly is convenient and more than a few people have used with excellent results.

The original Japan Drier had a heavy metal in it (lead or maybe cobalt?) and that was taken off the market. I don't know what the stuff now labled as Japan Drier has in it but it seems to work well w/some of the linseed top coatings I've used.