Yes, with two racks of meat going, you might not be able to use the top rack for the temp probe. In this case, you could put the probe on the top rack of meat, just be sure to have it away from the meat...maybe no closer than 2 inches. So, I might put the meat toward the left side of the rack and the probe over on the right side. The other option is not to use the smoker temp probe at all...after a few smokes you will see where the unit heats to when you set for 225F, so you could just trust the smoker to do its thing!