Hey, which brush do you guys recommend to apply these products on to a brand new exterior oak door? Which brand and type of brush http://www.screwfix.com/p/sikkens-cetol-hls-plus-exterior-woodstain-semi-gloss-light-oak-1ltr/6555h http://www.screwfix.com/p/sikkens-c...dstain-translucent-sat-light-oak-2-5ltr/4838h Thanks