I've never smoked beef ribs, so I'll be watching, too! For me, though, it would have to be bone-in! I mean, who could resist chewing those big, brontosaurus-looking ribs! Beef ribs are great! I've just never done them in the smoker. Seems like every time I look at them in the store, they're kind of skinny, and not that appealing. I'm going to have to look again this weekend!