What an experience, nothing went right the MES 40" 2.5 gen was running at 230 according to the temp reading on my phone and on the digital readout on the smoker, but two accurate probs placed on the middle rack read 180. So to get to 225 I set the temp at 270. Then my pellets wouldn't stay lit for some reason and I kept relighting them. As you know when you light them you need to blow out the flame wihich I did. I wanted a while and smoke nice smoke started coming out so I went inside to do something else for a few minutes, when I returned an alarm was going off and it was smoking heavily and the temp at 320. I opened the door and the whole 5x8" pellet tray was on fire. Bear, another good reason to have a glass door. Well I pulled the tray and put out the fire refilled the tray and started over after cooling the smoker down. Then every time I checked the ribs they were at 145 after 6 hours and the chicken at 148 after 3 hours both were obviously done so I piled them even though the ribs should have been st 185 and the chicken should hsve been at 165. I have no idea of what went wrong but some how the ribs and chicken ceme out fine.