And while we're on the subject of Lockhart, Texas, barbecue, I'll remind everyone that that's the stuff with NO sauce on it at all. I think the best BBQ is so good that it doesn't need sauce, though I also understand that the sauce itself has become an integral part of the barbecue.
One other thing that hasn't been touched upon, I believe, is MSG. I've read some people who say they wouldn't dare serve "prize-winning" BBQ without using MSG. Personally, I think that's a cheap copout. MSG is just a lazy way to add flavor.