Long story, but I'm smoking two 8 lb briskets for a friend, and I'm trying to estimate how long it is going to take to reach an internal temp of 190 using a smoker temp of 260. It's been a while since I smoked a brisket this small, and since I have to deliver it for a party, I want to make sure I have at least a couple of hours for them sit wrapped in the cooler, but not more than 6 hours, if I can help it. I've searched, but haven;t found any help using this temp. I'm thinking less than 8 hours, but I would appreciate any help from some of the more experienced smokers. Thanks.