We are on day 8 of incubating. Diy still air incubator in an old roaster. Every night from 3am to 630am when i wake up, we get a 2-3 degree temperature drop. It's been incredibly steady. So from about midnight to 3am, i let the incubator hold at 102 on top of the eggs, 99 behind, because i know the temps will drop. Last night they didn't! At all! Weather is the same as its been. The eggs held steady at 99 behind them and got up to 103 on top. Could the eggs be giving off their own heat? Also, in a still air incubator, a few hours at 103 isn't guaranteed death, right?