Gerald there is a guy south of you that used to regularly post that swears by 1/8 dense cardboard. Have been meaning to try this for yonks. Of course Andrew uses the disposable MDF method so that obviously works. Since I have Andrews roller idea on the Buddy I can get away with the onion skin without breaking through method then using the 3/16 Amana trim cutter. Very, very, pleased with this method.