Video on YouTube where ben lang says to go by his temp gauge on cooker not temp at cooking surface because radiant heat hotter at racks, I thought different, playing with 36 patio and I couldnt get even temps from left to right ,I had 4 probes on cooking racks fire box side 40 deg hotter that side heat comes up also front on each side could be 10 to 20 deg hotter than rear. I had small hot fire. I just don't get it.