sooooo ... here's some sage wisdom. like, i smoked a brisket on my offset and planned to serve it last saturday at 4pm. put it on the smoker at 6:30pm friday evening, and babysat it until i wrapped it at 4:30am. 7:30 it was done; 95 degrees internal and probing tender all around. dropped it in a cooler and went to bed. i know - the internet says 203 degrees, but every time i've pulled it that late it's been overcooked by the time we're ready to eat. mileage may vary. anyway - it was still warm (not hot, but thats ok) at 4pm when i unwrapped it and sliced into it to serve to the family. fastest brisket i ever cooked at 13 hours. usually they are on the smoker 20-24 hours because i'm mildly retarded and go for the 17-20 lb briskets at sams club. really the moral of the story is that a longer rest doesn't hurt at all, but if you have folks arriving and the meats not done, thats always bad, so give yourself more time than you think you'll need. set expectations... then if you're done early, everyone is happy.