Michael Meadows, left, and the Posse dig in at Pit Stop BBQ in Waxahachie. (Photo ©Chris Wilkins/Texas BBQ Posse) Maybe there was a time, long ago, when I was surprised at how seriously people take barbecue. But certainly not anymore. Take Michael Meadows, one of the Posse’s newest members. He and his family were in Colorado skiing last week. They drove 900 miles Friday arriving back in Dallas just before midnight. And yet Meadows made the starting gate with the rest of us Saturday morning at the first stop of our South of DFW Tour. During the day, we ate at…