Well, as some of you know, I made my own bator. The other week I added 3 eggs and had more crazy temp spikes, from 98 up to 103F. Amazingly, 1 egg is developing and growing! Another egg I just can't tell, but leaving it in the bator and turning it. Update, that 2nd egg is developing, too! I added 6 eggs around the 15-16th, need to candle those. Added another 16 eggs[I found them outside where all the hens were hiding them from me for several days] about 2-3 days ago. I'm sticking with 30-35% humidity pretty much throughout. Mainly because it's another staggered hatch and I do not have a Hatching Bator. Might make one later on in the season.