Oh, one other thing I do now a days. If I think my lead is getting too soft I will add a few wheel weights as it has hardeners and any number of impurities in it. Once a couple of weights melt down in my 10# pot I skim off the crud and continue on. Some times it does not pour the best and leaves my jigs with blemishes, crappie don't care, just us jig pouring folks.