pork on top

I'm two hours in. 2 - 6.5 lb bone in pork shoulders, injected and rubbed on the top grate 1 3.5 lb brisket flat on the bottom grate, rubbed The pork has been on for 2 hours (started at 7) and I just put the brisket on at 9am. I reason that the little 3.5 lb brisket won't be done before the...