Ugh, worring about that incubator. I know I shouldn't. I have done everything save buy that digital thermostat hubby keeps recommending. I have two jars of water in there, the heat sits at 99.5 for an hour before it dips down about 5 degrees and then thermostat pops on. It is warmer way longer than it is cooler. Humidity is a bit high (70) but the 3rd vent hole fixed that. I put a nerf dart behind the thermostat to help the thermostat recognize temp fluctuation. I even made a chart to keep track of turning the eggs! But that fluctuation is giving me indigestion. ugh. At least that's what I tell myself, the incubator is on the way to the kitchen and I like to grab a snak as i press my nose up against the glass. I'm probably going to gain more weight!! ugh..