I have a great recipe for a london broil marinade that I've used with a grill-cook on 2-3 occasions. However, london broils are notoriously tough, so I've yet to get one as tender as I like cooking on the grill. I wonder if low and slow in the smoker would help break down the tissue and result in a more tender piece of meat. Has anyone done this? I've never cooked a brisket, but from reading this forum it seems that it is also a tough piece of meat...perhaps the london broil would be similar. If you have cooked one, how did you prep the meat? Did you finish on the grill? How'd it turn out?