I bought 12lb brisket to smoke on my maserbuilt smoker. I think I am gonna have to cut it in half to make it fit. I am going to use 225 for my temperature. Someone give me a educated guess. Is it goin to take 6-7 hours because I cut it in to. Or, will take more like 12 hours because total weight of the brisket? I hope this does not sound stupid. Thanks