After a hiatus of 20 years from BP, I have rediscovered the addiction and have found my old round ball molds. My question is how to properly use some Lee aluminum round ball molds. I have a finicky Lee .32 single cavity mold. How do I protect the mold from galling by the sprue plate? I think that I remember touching some beeswax to the top of the mold to lubrcate the sprue plate but I could be wrong. Any help appreciated!