Came out pretty good.
These have been showing up at SoCal Costcos recently for $2.79/pound. Fairly basic rub (Pepper, garlic. Onion, salt, Paprika, and a bit of Cayenne(. Started it at 9PM and went to bed shortly thereafter. Woke up a bit before 6 - 163 internal, 280 Dome temp. It went up to 167 withing an hour, so I figured it was through the plateau. Wrapped it in foil, poured some drippings in, opened it up a bit to 325. Pulled a bit under 2 hours later at 190. Wrapped it tight and put it in a thermal bag for a bit under 3 hours. Separated it, sliced it and chowing down.
South SLO County