Question about that! I had eggs shipped to me and all of them arrived in great condition-- no cracks, etc. However, half of them ended up having loose air sacs. I set them with the large end up in my Brinsea and am crossing my fingers. I'm trying NOT to handle them (candle) since I know that is kind of a big deal and I don't want to move them any more than I have to. (other than being rocked in the incubator) I've never dealt with loose air sacs before (1st time having shipped eggs) So what should I expect? Do these eggs ever develop or hatch?? Thoughts on them??? They are on Day 4, I haven't looked at them.