Ended up attempting some beef barbacoa with chuck roast and some smoked salsa for a get together this weekend. Had 2 chuck roast rubbed them with a mix of chili powder, cumin, smoked paprika, onion powder, garlic powder, salt and pepper. Threw them on my smoker at 250 and cooked for 3 hours. They weren't quite to the temp I wanted but running a bit low on time I went on and threw them in a pan with a sauce made with Dried Whole Chili Peppers, Chipotle in Adobo, Rotel, Orange and Lime Juice along with beef broth. Cooked until they were hitting 205 they were probe tender but didn't shred quite the way I wanted them too. Also threw some veggies on the smoker and tossed them in a blender and whipped up some salsa. Maybe will get the meat on a tad earlier and be able to let it go lower and slower but overall made a plate of killer nachos.