Sometimes the difference between good barbecue and bad barbecue is just a small tweak away. In the case of Big D Barbecue in Mansfield, that tweak can actually be physically measured—and it’s a mere eighth of an inch. Big D Barbecue is proof that perseverance in barbecue pays off. The team here kept trying to improve, and it paid off. Just goes to show that a small tweak can make, ahem, a Big D(ifference).