I set 10 eggs on 2-22 and they all turned out to be duds. I picked up eggs from a different person this time and am hoping for the best. I have a new Hovabator with fan and automatic egg turner instead of trying to regulate my ghetto looking homemade incubator. I started up the Hovabator last night, went to work today and picked up the eggs on my way home. The incubator has stayed exactly at 100 degrees and 38 % humidity since last night. I'm setting four pure French Maran eggs, they could be black or blue, the hens are in the same pen. I set 12 mixed eggs, could be any of the following mixes.... EE, Barred Rock, Wheaten Maran, Cuckoo Maran. My kids are excited, can't wait for March 21st!