So happy I found this thread, yay! I have a farm innovators 4200 still air incubator, currently with shipped call Duck eggs in it, day 4. I have 3 thermometers and 3 hygrometers total (counting the included one) and will be getting a battery for my digital one today so I can put it in on day 7 when I candle the eggs again. My humidity seemed stuck at 60% for the first 3 days, when I candled the eggs and marked their air cells and shut it, it settled back at 30%. All three hygrometers and thermometers are showing identical readings so it seems to be ok. My temps have been steady at 100-101. I don't have any tips for these incubators as this will only be my 2nd attempt. My first attempt was with 6 magpie & 6 saxony eggs, only 1 saxony hatched and she was killed by my bigger ducks at 2 weeks old. :cry: she was my first and only hatch so far.