I've been looking at the brownell set up for awhile now, and while I'll get all the chemicals through them I can't see buying the tanks and stands,ect when I can fab them myself. Same for the burners. They look to be pretty straight forward. An old gunsmith I know said he preferred a rounded bottom to the tanks instead of flat. He said he thought it heated more evenly. Not sure about that, Thoughts?
Not to sure I've only watched it done. My old man says the same about round bottom....some hoo-hah about flame dispersion...