This is my first time hatching chicks. My incubator says it is preset for 100* and it came with a little thermometer to put inside. In the instructions it says to disregard the little thermometer for the first few hatches using the incubator. This is supposed to be because the incubator's internal thermostat that regulates the temperature is supposed to be more accurate than the thermometer. The instructions also said to incubate some eggs and see how the hatch goes and if it goes bad then you adjust the internal thermostat for the next hatch. Well the little thermometer is saying it's 101*. I don't want to risk my eggs just so I can see if the incubator really is where it's SUPPOSED to be set. How much can the temp safely vary before it causes complications. I know if it gets beyond 103* you're in big trouble but what about 101 or 98? My reason for asking is because the incubator is supposedly set at 100* but from what I've read it should be 99.5* and the little thermometer is reading 101*. The way I figured, if I adjusted the internal thermostat using the switch that will lower the temp by 1/2 to 1.5 degrees, hopefully it would be closer to right without going drastically one way or the other. If the little thermostat is right that would put me at around 99.5-101.5* but if the internal thermostat is correct it would put me at about 98.5-100*. This seems like a safer range than somewhere between 99.5 and 101* Opinions? Did I do the right thing?