I got my Maverick ready check digital thermometer today. I am checking the internal temps of my electric smoker. I have found that the top rack gets way hotter than the bottom rack. Almost 30 degrees warmer. When I set it to 250. The top rack gets to 250 and the display on the smoker says 208. I moved the probe to the bottom rack and it is only off 14 degrees. Is anybody else seeing this drastic of a difference?