Here's my set-up.
here's the lead I was smelting BEFORE fluxing.
And then after fluxing ready to pour ingots.
Then a few of the ingots I made that day.
Here's what I was smelting.
That's a multi drill head counterweight, a big machine,(natco), for drilling and tapping holes in an axle bowl. There were 40 of them on that machine, each weighing 90 pounds. It is nearly pure lead. Alloying that with some Linotype gives me boolits with nearly the same content as wheelweights,(17-3)
+1 on the lee pro 20! After years of casting with a lee production pot,(8 pound capacity), the 20 pounder is a joy to work with.
Also +1 on the lee 6 holer's. I have 4 of them, they ALL work well. Another +1 on the bull plate lube from the bull shop in AK. Get that from the cast boolits board.
http://bullshop.gunloads.com/
It's just the best mold lube you can get. The secret is that it is a special high temp lube that won't burn off. Most molds need some lubrication on the guide pins, pivot points for the sprue plate, and hinge pin. Especially the aluminum molds, like lee and NEI.