i rub in a circular motion, but today i use the brush again and i think i prefered it, but the sponge is a good thing to use, ive only beem useing the sponge for about a month and only really crack it out if im putting on a huge set that will proberly get away from me a little bit, just to make it easier on my elbow.
good idea but i prefer the brush.
u useing the plastic trowel yet