I did have high reading once. Could have been my fault. I think the food probe was to close to the bone. Now I double check with a digital 6 second thermometer that I bought from Themoworks for $15. It was America's Test Kitchen's pick for budget thermometers.
Performer, UDS, 2011 WSM, Frank-in-Weber, 120 Gallon Offset, IQ-110, ET-732