Looking for some pointers. I've got my Lee .50 cal ball mold and some lead. Using a propane dual burner stove, one to melt the lead and one to heat the spoon and mold. I lubed the mold and the mold chamber with 1800C cooper based high temp lube, both to keep all the joints slippery and to keep the lead from sticking in the mold. The problem I'm having is that the lead solidifies on the sprue plate before before it gets into the mold, thus plugging the holes and preventing me from filling them. I suspect that I'm not getting it all hot enough, am i right? The two 1/2 balls I made seemed to be really good, just wish I could get a full ball made. Help is always appreciated.