I am new to cooking with my smokett, got it two months ago. I was having long cooks on some cooks and normal cook times on some. To make a longe story short, if I use the higher setting on my grate holder and put my grate in the lower slot my grate touches my temp probe. This makes my temp run 25 to 30 deg too low. If you are haveing long cooks somtimes this may be your problem. I love the food I cook with 008!