It doesn't have to be hung if slow cooking as per "pulled" beef!
I have not seen pulled beef, only pulled pork and pulled turkey.
Brisket is done in a smoker at around 14 hours plus, I have heard of some doing it for over 24 hours. The main menu offerings are: Brisket; pulled pork; pork ribs; beef ribs (not common); turkey; chicken; sausage.......burgers - mainly to turn a shilling.
If visiting a BBQ place the first and only benchmark standard question is: Do they have a smoker? If the answer is no, then leave.
Places, even some large theme parks and top eateries, pass off oven done stuff as BBQ, they slather it in (cash and carry bought) sauce and charge good money for crap. The worst I have heard about is the one's who boil racks of ribs, then fish them off under a grill to give a sizzled look, then spread on the not so homemade chefs special sauce.
It is a big time thing over here, there are local, regional and national championships*. There are even celebrity BBQ chefs who host telly programs similar to masterchef for the BBQ crowd.
Note* Early on over here I stopped off at a hotel on my way somewhere one day and found the carpark to be full of vehicles with BBQ smoker trailers in tow. Down for a drink that night I got chatting to a few of the blokes and they put me right about real BBQ. I had all the how's, why's and wherefores explained to me and dropping meat onto a charcol burning grill/griddle affair like we do in europe would get you kneecapped over here. You use a smoker and if you take your time more or less any numpty can produce a good acceptable BBQ. The competition blokes go for specific things with the meat, try and produce top notch sauces, taking anything up to three days to produce meat out of their smokers.