Michna's BBQ on Franklin in Waco. To me, the Q at Michna's seems close--especially in terms of smokeyness--to that found in Lockhart. Perhaps my amateur Q taste buds need calibration. But, I really believe this is the case. They have an all-you-can eat option. The sausage sucks--don't "waist" your time. Get the ribs, brisket, and chicken. To lend myself some credibility, I would normally never order chicken at a BBQ place. However, this chicken--especially the dark meat--is so smokey and juicy.
WAIVER: DO NOT PLAN A SPECIAL TRIP TO EAT AT MICHNA'S. JUST STOP BY IF YOU ARE PASSING THROUGH WACO. I DO NOT WANT ANYONE WASTING THEIR TIME IF MY Q TASTES ARE OFF.