No problem. If I see another detached air cell then I'll get a picture. As Im wanting some Sebastopol Geese I think I'll have to buy eggs on Ebay. Its the rough handling in the shipping that causes the problem usually which is why I try to avoid shipped eggs myself
Pete
Incubate vertically for at least 10 days. This confines the air to the end it should be. The sucess rate is about 50% in my experience. After 10 days the embryos own membranes have grown within the egg to create a new seal
Pete