I purchased a MES30 smoker from Lowes last week. I believe it's a Gen 2. My first smoke was a whole spatchcocked chicken and second was brisket. The temperature seemed to be run about 15 degrees higher during the chicken smoke (set at 275) and then 15 degrees lower during the brisket smoke (set at 225). The other difference between the two cooks was that I had water in the water pan for the brisket. Could this explain the temp difference or do I have a malfunctioning unit? I am really paranoid after reading all of the reviews on the Gen II units. Also, does anyone know how many racks of spareribs the 30" will hold? I realize I will need to cut them in half to get them to fit. I may decide to exchange the 30" for the 40" at Lowes for the rare occasion where I will have to cook for a party. However, I have heard that there are even more issues with the 40" Gen 2 units, right? Edit: I used a ThermoWorks thermometer to check temps.