I left my house with my still-air incubator holding at : bottom of the eggs 100.2 top of the eggs: 101.7 (this is as close as I can get it). I left at 2:30. I returned at 4:30, and my bottom therm. read at 101.3 and my top read at 107.4 ...I yanked the top off the incubator, and was ready to cry when I realized that my top thermometer had moved upwards- they are probes and I stick them in through the vent holes- way up toward the heating element (probably stupid cat walked by and bumped the probe). My eggs felt warm, and I think they got warmer than I would like, but I don't think they were 107 degree warm. Not with that much of a difference between top and bottom. Your views? Think I am okay?