Even with three thermometers I can't quite figure out the temperature in my incubator. One reads around 97F, another at 100F (correct for quail), and the last at 102F (incubator's display). Being that I don't have another thermometer on hand, and would like to avoid buying one just now, which temperature should I go by? I figure a few degrees isn't too much, but I'd appreciate advice from someone more experienced (this is my first hatch, hopefully).