Last week on the Posse’s Facebook page, we had a good discussion with readers about the use of real wood or other means to smoke barbecue. One reader, Mark “The Hogfather” Gabrick, suggested that we lead an initiative to get Texas to pass a truth in barbecue law. Or, more simply, we should designate joints that use only wood as “Posse approved.” Gotta admit, that last phrase does have a nice ring. The Hogfather noted that “Carolina” passed a similar law a while back, which sent us scrambling to the Internet archives to substantiate. Indeed, in 1986, Gov. Richard Riley…