First overnight smoke(second with WSM). Minion method-kingsford, full water pan, 12lb brisket. Several hours to stabilize temps. Tel-tru in lid and Maverick grate and meat probes. 20-30 degree difference with lid lower-should it be the opposite. After 11 hours meat temp 170-175 and holding. Maverick(175),thermometer(170). Please help me understand the temps-which to follow-lid or grate. Should I push temp through to 185 and expect to smoke for another 3-4 hours or more. Meat seems fairly easy to push thermometer into. Thanks.