Customers order lunch on a Saturday morning at Smoke Sessions Barbecue in Royse City, east of Dallas. (Photo ©Chris Wilkins/Texas BBQ Posse) The Posse first visited Smoke Sessions Barbecue about a year ago, when Jim Rossman saw a Facebook post about a new trailer operation located in a feed store parking lot between Rockwall and Royse City, east of Dallas. Jim was impressed with the overall offerings, calling the brisket “superb” and the beef sausage “outstanding,” in his story introducing readers to DFW’s newest barbecue joint. One year later, Jim and Posse member Mike Stone joined me for a return…