I've done the Leather CPR both ways, but I've discovered that sometimes when I put it on thick and let sit, I will get swirly marks. So now I spread it on sort of thick, but start blending it in within about 5 to 15 minutes. The paper towel method works best with Blackrocks. Also do one part at a time; put it on a small part, rub with the paper towel, then do another part. When I'm all done, I'll give a final buffing with a brush or cloth.
Fantastic, thanks for the quick reply!