Tryed my first briskets today, two 6lb flats. They where going fine for the most part after peaking around 150 the larger one started gaining again after about 2.5 hrs, the smaller took closer to 4. I foiled the first at 170 took it off at 190 and all was well but the second one is sitting again at 160 and its been there for 3 or so hours. Its been on about 12 hrs now. I put a second prob in it to make sure my thermo wasnt broke but it was reading the same temp. the center is the only part of the brisket that doesnt look chared up. Is this normal for briskets becuase I have never seen anything like it with butts.