Award-winning pitmaster Steve Graham and his primary smoker at Pit Stop BBQ. (Chris Wilkins/Texas BBQ Posse) An experienced competition cook, Steve Graham has filled his Pit Stop BBQ restaurant outside Waxahachie with trophies and plaques. He knows how to cook for a tough audience, judges, even different sets of judges. For example, he said, he always tried to get a look at the judges before he started preparing his meat. Older judges like salt, he said. “In a competition, that first taste is everything,” Graham said. So the flavor has to be bold and great. If you read our posts…