I recently purchased a brass mold and an aluminum mold and used the bull plate lube that came with them and obviously used to much even being aware to use very sparingly. The first castings came out wrinkled beyond anything I've seen in many years of casting. I've twice used Dawn soap, once acetone and once carb cleaner. I've used the hottest temp my pot will give me. 800 degrees by my Lyman gauge. I have improvement but have only a handful of acceptable bullets out of maybe 500 cast. How do you get rid of this stuff?