It's been too long since I hatched shipped eggs. I can't remember the best position for lockdown. Sitting up in an egg carton or laying down? I received an almost completely scrambled batch of eggs. 3 of the 18 developed. Lockdown in 2 days if they keep going. The air cells are really bad. Not saddle shaped but really messed up and bubbly. Would it be best to leave them upright? Or try laying them down?
Good luck!
In my most recent batch of Jubilee Orpingtons, one poor baby's air cell is totally detached. I have them sitting upright and only rotating in that position for several days in an attempt to correct it. I'm not sure what can be done in later development except crank up your humidity to as high as possible if your air cells are super big/dry. Sending hopeful thoughts your way.