Long line at Killen’s BBQ in Pearland last Saturday. (Photo by Bryan Norton/bbqtreasurehunt.com) “Magic tingle.” That’s how Bryan Norton, a blogger who rides a motorcycle to many of the barbecue joints he visits, describes the experience of tasting perfect brisket. “It’s that magic combination of pepper, salt, perfectly rendered fat, and of course brisket that literally travels through your body,” he explained recently on the Posse’s Facebook page. “I’ve seen it make people giggle, laugh, roll their eyes back in their head, high-five and sometimes all of those at once,” Norton wrote. The Posse can’t argue. That may be the…