First off, I'm not new at this....Ive been using a GQF styrofoam incuabor for years with great hatches. Last summer I obtained a homemade incubator. Cabinet style. wood frame with 3 levels, each capable of holding two auto turners, for a total of 6 turners or 252 eggs. My problem is that i have massive temperature differences for each level. and no eggs have hatched. The heat sources are light bulbs. Digital controls for temp and humidity. I've verified the temp readings with another calibrated thermometer. The light bulbs are at the top of the incubator. One large fan that circulates the air. The top temp read 110+, while the bottom tray readings were 96. I'm thinking about moving the lamps to the bottom area and adding another small fan in an attempt to get more consistent temperature reading throughout the incubator. Thoughts?