The opening spread to Texas Monthly’s Top 50 BBQ list. (Photos by Wyatt McSpadden/Texas Monthly) During the past four years, we’ve eaten a lot of great barbecue and met an equal number of notable folks running BBQ joints around the state. A meal is almost always followed by a pit tour while swapping tales about the Texas BBQ trail. They always have a story to tell. At some point the conversation almost always turns to Texas Monthly magazine and the holy grail of endorsements, their Top 50 BBQ list. Faces would light up at the possibility of landing on the…