Hi Sir..its a great to see you make a good jig...may I ask you sir....?? 1) what kind of lead you use to make a jig? 2) do I need to mix different types of lead to make a jig? 3) what is the best temperature to melt the lead to make a jig? when I removed the jig from mold, I found that my jig surface was not as smooth as your jig..it is due to my mixture lead or what?