ok, set 5 eggs 22 days ago from our RIR hens/barred rock roo. I am surprised by the results... 1 totally infertile 1 stopped developing at about 10 days 1 stopped developing at about 15 days (wasn't sure on this one left it in even though air sack was too large compared to others) 1 started weeping a really nasty green goo - I knew it was rotted - it blew up when I tapped it to open it! GAG!! 1 hatched right on day 21.... Is this common? I had too many variations for it to be one thing, right? Suggestions, comments, ideas? Oh, I used the 1588 with egg turner for incubation and a LG for hatching. The hatcher temp fluctuates - I don't know how to keep it from that! - but it was close to 100 w/ about 70% humidity. Although this is probably fairly irrelevant since on ly one egg truly made it to 18 days.