LRoss, I never had that happen. About ten years ago, William Jennings (Wiljen at CB, the LED flashlight guy) did a group buy on Felix Lube components and I participated. Instead of Ivory soap, the chosen item was stearic acid (beef triglyceride) because it would melt in easily at a low temperature. Well, there's one oroblem with that.....stearic acid isn't sodium stearate, it's the acid half of the soap without the sodium hydroxide base component, so it is essentially an unreacted fatty acid in the lube. Beesax also contains a variety of free fatty acids. The end result was lube that shot ok but had a lower melt point and turned gas checks and case necks green in short order. It did not, however, seem to affect the lead alloy much.