Smaller one pulled, closeup.
Overall I am very happy with my first try. Great smoke flavor, both were tender and juicy. The Au Jus was good but I had problems with my bottom foil ripping and letting a lot of it get away. Might need some aluminum bread pans for the next chuck roast attempt. The rub wasn't as good as I hoped. Given I was improvising with storebought stuff due to lack of basics needed to make my own, I guess it could have been much worse. I rubbed them with Worshteshire then used these two along with some pepper:
Thanks for your help guys. I'll post more info/pics when I get another chance to put the UDS to work.