Bought a 4.3lb flat brisket the other day. Not the best looking piece of meat but it was reduced for quick sale.
Did a mustard coating following by a spice/brown sugar rub I use on pork shoulders.
Set the medium egg up under a patio umbrella because of rain. Got egg to 250 and put it on the egg at 5:30pm. Pulled it off at 200deg around midnight.
Here's the tragic part. I let it rest for a while, then cut into it, and took a bite. The whole house has been sick all week and I have no real sense of taste. I can tell it's not dry and it's tender, but as far as flavor, nada. I think I got a hint of smoke, but that's it.