Well I can tell you all that if anyone has a layer of lead in their lungs, it's me. I've been a solder technician for the Navy for the past several years and I handle lead solder all day long. Last time I was tested, I was three times over the normal amount of lead in my system. We have kick ass ventillation which doesn't really matter because lead has to get way hot to vaporize. The way it gets into your body is through your skin. Handling the stuff without gloves on will cause fine particles to enter your body through pours. As long as I'm still able to get wood I'm good. The problem with most the jig molds as well as the jigs themselves around here is that they all hove a collar (crappie jigs). It looks like I'm gonna have to order online for this one. But my offer remains for any one who wants to knock out some 1/8 oz. jigs for me.