I have no problem controlling the temp in the UDS with the damper and air inlets, it's pretty rock solid. But I usually am burning charcoal and just throw a few chunks on top for the smoke, I was just trying to figure out how much you use for smoke. I've only used one smallish log for this smoke, which is twice as much as I normally use, and 2 cuft is a lot more than 5 or 10 logs. You pay $10 for a stack that lasts 5 smokes, but I don't know how big a stack is, that's what I'm trying to figure out.
I still have a ways to go with this smoke, the meat is at 177F on its way to 195F. I had it low and slow at ~215 for about 10 hours, then got it up to around 250F to finish. Another couple of hours I imagine. I'll post pics, but I'm not opening it right now.