4 hours into smoke, 9am. Burning the lump charcoal in my smoker made my temps drop below what I normally smoke at. At one point I was down to 250. I usually go more around 300 with the Kingsford Competition Briquettes. Well, I'm running with what I've got. Anyway after 4 hours my IT is in the low 160s, so I'm putting the brisket in an aluminum pan and adding 1 can of beef broth and wrapping. I'll check on the IT in about 2 hours.