Haven't tested my Maverick for about 8 months and wanted to get an idea of how accurate the stock therm is of my new WSM 22.5. So after 5 minutes in boiling water, the WSM stock therm held at 215 and both the the smoker and meat probes of the Maverick Redi-Chek held at 212. Next step is to run the WSM and check the temps at the dome and at the top and bottom grate levels. Also, with 4 smokes under it's dome, the WSM is starting to build up a nice coating on the inside. Smoke on my friends!