Cooked covered,about 6 1/4 hours later, internal temp at 200, DONE!
Give things a test pull, shreds nice and easy, time to eat.......
Looking over the list of ingredients, I forgot the 1/2 teaspoon of cumin per 5-6 lbs. of meat and a goodly dash of liquid smoke, perhaps 1 tablespoon per 5-6 lbs. as well.
If you want it spicier, just add back in the cooking liquid to taste; try to skim off as much fat as you can for the best additional flavor going back in or put the meat back in to the skimmed liquid for a bit. Those chipotle peppers are pretty lively, at least to my taste buds; a little bit goes a long way.