Slammingjack, like Smalljaw I have been getting my lead from Roto-Metals and have not had this problem. Prior to me getting my lead from there, I still have not had a problem and have been using all kind of free lead I could get. I will tell you one thing and that is the new Lee pots don't seem to get as hot as the old ones. Reason I say this is that I also get the bottom of the lead (on startup) melted first before the top part finally melts. In the mean time if I don't watch it, the bottom will empty while the top is still solid (never had this problem with my old pot). So unfortunately, I have to check occasionally so that doesn't happen. When I see the lead drip out like that on start-up, I take a screwdriver and stick it in the plunger slot and forcefully turn it while pushing down. This solves that problem. Also I found that the old magic #7 to #7-1/2 on the dial is not magic number anymore. I turn it up to #8, which seems to work better. This tells me that their elements are not running as hot as they used do. Which in turn doesn't make the lead hot enough to pour fluidly. The hotter you make that pot (you will see) the better it performs, However I don't suggest you run it at max. I also believe that each pot has its own set of problems, and also they are not all built like they used to be. I have (5 ) Lee IV pots, as 3 of them are spares. They are workhorses, and they all have their idiosyncrasies but I think you may have a bad pot. I too expressed my issues to the Lee people about their pots. Although helpful, they don't resolve my issues. On a final note, I have also been using an RCBS pot. Although expensive, they do run close to perfect. Let us know your final outcome.