I made this last weekend, and I'll have to say it was absolutely superb!!! The only thing I changed was that I added some ancho chile powder and chipotle chile powder to the brine, which gave it a little more spice and smoke. I brined the butt for 30 hours, then rubbed it down with mustard and Salt Lick rub, then let that sit for another 27 or so hours. After that, it was into the smoker with 6oz of hickory. It took 10hrs and 45 minutes to get up 190. I double wrapped it in heavy foil and let it sit for 20 minutes. I thought I was gonna die waiting for that 20 minutes to elapse, but it did...finally, and the finished product was just really, really good.
This recipe is definitely a keeper. Oh...I couldn't find the pink curing at the grocery store, so I'll use that next time. I'll post some pictures later...they're on another computer.