I thought I would be smart and spend most of the 13 hrs sleeping. SO I fired up the MES 40 and got things rolling. Went to bed. Somewhere between 2am and 5am my MES40 shut off. When I checked at 5am the meat probe said 92 inside the meat and the box was 65... So I promptly fired it back up to 240 with 4 hrs left and went back to sleep. Now the 4 Hrs is up and Im sitting at 160ish. Is this butt junk? It might of coasted for a few hrs with no heat...??? I know you cant say for sure, but what kind of probability?