I would not know the answer to that, or if there is one. It's kind of into the cycle. This is my first foray into shipped eggs. I read a ton of posts before they arrived as the biggest problem seemed to be damaged air cells and I really want these to hatch. I know it's a gamble but these birds are not available close to me and I want to try. My own eggs and eggs I have driven myself to get have about a 100% hatch rate. Hoping that I even get 50% with these though the blues did look really good and were packed better than fine china. The posts I read all seemed to indicate that, given the time to sit and rest, the air cells do have an ability to correct issues. Letting them sit for several days before turning and sitting upright gave the chick a chance to start developing with it's head facing the air cell.