Hipshot's right. In the one video I've seen, on making your own lead lures, they use a propane burner to initially melt the lead in a large black iron skillet (never to be used again, for any other purpose), skim off the slag, and then ladle clean molten lead into the pre-heated 10 lb. Lee electric pot. I also agree that it sounds like your pour hole is partially blocked. I haven't had any problems with pouring up to 20 oz. bank sinkers from my Lee 10 lb. pot, using Hilts and Do-It molds. Usually have to make 1 or 2 pours to get the molds warmed up. Always use quality lead - I use old lead pipes and roof flashing, purchased from a scrap metal yard. Car wheel lead weights are not a quailty source of lead, too much antimony in them. I cut off the bottom plate of my Lee 10 lb. pot, and attached the back of the pot to a pair of small pipe clamps. The clamps fit over a pair of 1/2" diameter threaded pipes, about 2' long, picked up at Home Depot. The pipes are screwed in to those round mounting flanges, made for them. The flanges are screwed on to a large (cafeteria size) metal tray, that becomes the new base for my pot. By adjusting the pipe clamps, I can easily move the pot up, so the larger molds easily fit underneath, and down to be closer to the smaller molds. Good luck.