Well it took a while, but here's the rest of the saga...
After 3 hours or so the temp fell into line and once I knew that the PartyQ would do it's job ( this was the maiden voyage) I decided to grab some sleep. Four or 5 hours later, the WSM is hovering around 235. Checked the PartyQ and that's what it was set at. The interal temp at this point is about 170. Bumped her up to 250 and came back a couple more hours later, looks like I might need to add some fuel. Pulled her off at 3:30, after a 14 hour smoke, at 196. Probes were all in like butter. Wrapped and rested for 1.5 hours. The results were awesome! Lots of bark as I'd had planned, meat was moist and some of the best pulled pork I've had, WAY better than our local BBQ joint.
Hope you enjoy the rest of the pron!
22 WSM, 22 Weber kettle, Weber Silver B, Maverick ET732, PartyQ