Oh, let's just throw it on a Die Grinder. Ok, get a big 6 inch round abrasive base, hold down the trigger and hold the base against it long enough to get it flat! That is what my Lack of Competition does! I cannot believe they seal. Actually they do not. That is why they use the new thick gaskets. If my bases need the Original Super Thin Gaskets they can use them. My bases are surfaced on a Centerless Grinder. Flat as Glass.
