3:45, my butts were almost on 10 hours in the smoker.
I have 6 on the WSM, for nearly 45 lbs raw.
I am running a bit behind right now. I have to take them to an open house at 2, and my temps are around 180.
I went through a LOT of charcoal too. My overnights haven't used this much. A full tray, plus 20+ more added.
I foiled at 9 am, and bumped the heat to 250 (all vents open).
I am thinking about taking them off now and putting into the cooler now,and hopefully the residual heat will carry them to 190. Then I can pull around 1 or 1:30.