Made some last week!
Slather: yellow mustard + honey (50/50)
Rub: the Magic Rub I developed
Liquid: 1/2 cup stew puree (carrots/celery/onion which had previously braised some chicken thighs) + 1/2 cup "apple pie" liqueur. Liquid went about 1/2 way up the roast.
In crock pot for ~9 hours
Results: tender, flavorful, falling apart easily, not dry. Not smokey at all; would've been nice in the smoker.
Vinegar sauce I made (recipe is top secret!) turned out well. Hints: multiple vinegars, honey, catsup.