It took almost 6 hours. Ended up smoking it on the #2 vs. #3. Guess that puts this into the wrong forum but I did really start out to use the 3.
As it was part of a flat, I injected it with some beef broth and it still could have been moister. I foiled it at 165, put the beans in, then finished it to 203. I intentionally used less smoke (1 oz cherry/oak). The smoke flavor was subtle and played MUCH nicer with the finishing sauce.
But you are right, it took quite a bit longer than I would have expected.
Was at the grocery store and they had cut a flat into roughly 2 1/2 pound pieces. Since it was just the wife and I for dinner, I thought I would try it.
Think next time I will let it rest longer after I get to 203. Only left it in the cooler for 30 minutes vs. 3 to 4 hours with bigger ones.
Using the #3 so much, it was fun to use the #2 again....
Mark