The Tuesday lunch crowd at MeShack's Bar-Be-Que Shack in Garland. (Photo ©Chris Wilkins/Texas BBQ Posse) It had been too long, so I went out to visit old BBQ friends in Garland on Tuesday. Travis and Donna Mayes opened the now legendary Meshack's Bar-Be-Que Shack in May 2009. They led the way to a renaissance of Dallas barbecue that has been exhilarating, including the opening of Pecan Lodge and Lockhart Smokehouse. New joints continue to open in the D/FW area almost monthly now, some good, some bad. BBQ snob Daniel Vaughn put MeShack's on the map in late 2009, giving them…