No Case that cook i ran the IQ, also one of my bigger reflectix sleeves (because of the IQ connector) and over stuffed the basket a little. That mini lid didn't come off until that butt was like 197-198 so i didn't waste any heat. That sucker was snuggled in that day breathing in warm air the whole cook. Case you see that PVC connector? Since the IQ has a plastic connector i used that PVC to connect it to so it doesn't melt....worked really well. The only time i use a controller is for a long unattended cook.