I'll throw one more torch in for consideration, but you'd need more oxy to do it. I have the Nortel Midrange Plus, with a premix on top. The sweet thing about this setup is that you can run the Midrange full out, and use a pinpoint tip on the premix, and run that at the same time. I do this for multiple dot beads and fine stringer work. It's a HOT pinpoint so there's a learning curve. The beauty of it is, you have an all-around flame underneath to keep the whole bead warm while you're doing the details with a focused flame.
I'm using NG and an Onyx+. According to Kimberly that's similar to the Integra that she sells, so you'd either need to add another, matched, concentrator, or upgrade to something like the Integra. The Midrange runs fine & dandy on house pressure NG, though. Working boro is a bit slower than it was when I had tanked oxy, but I don't work that fast.
