I just made a few bottlecaps and I have a question. I have no problems with the flattened bottlecaps, just fill them up! The trouble I am having is with the regular caps. When I put the resin on, it seem to just sit on the top and not cover the edges of the bottlecap. The edges seem to be a little bit bigger than the bottlecap. I use the 1" punch. Do I use a brush to get the edges?