I'm at the five hour mark with my 2 three pound Butts. This is my first attempt for pulled pork and everything is going fine. The internal meat temp is at 165 right now and the lid has been steady at 250 for 3.5 hours. The WSM is freaking me out, I keep going to check the temp and it's always the same. This was not the case with my chargriller offset I tried to use for two years. I had to screw with that thing every 30 minutes at least. I was considering getting a Klose offset but now I can save my money.