Thanks so much.
I followed the Incredible Brisket recipe and put it in at 9pm at 215F. It was done at 1pm. I moved the temp up to 220 at 6am. I can't quite figure out why Prime briskets are cooking so quick. Two weeks age I did a 14lb prime brisket, put it in at 11 pm at 225 and it was done in 5 hrs. I was guessing it would be done somewhere between 1-3 the next day. Imagine the temp alarms going off at 4, waking you up and finding out your brisket is done. Well I guess that is a small price to pay for a great smoked brisket. If anyone can explain this, I would be more than interested in finding out the reason why this is happening. Temp in the smoker is within 3 degrees.