I won an egg auction last week. Then we had a spell of single digit temps. The seller kindly held the eggs for me so they wouldn't freeze and crack. We'd discussed that some would be older but that they would throw in extras too. I got them today via priority mail 3 day. I paid for 10 and they sent 3 dozen! Pleasantly surprised for sure. All the eggs arrived unbroken/ uncracked and almost all the air cells are staying in place. Some have odd shapes to the air cell pocket that the air cell kind of moves around in but all the pockets are in the large end of the egg and they aren't to insanely saddle shaped. Some are cell pockets have a pretty pronounced ring around their edge? I'm wondering if there is any way to detect the older eggs before I set them in the incubator in 24 hrs? I don't have the means to incubate all 36 eggs at once. I'd like to for sure incubate the good ones, in my mini Brnsea and my "coolerbator" but I've still only got capacity for say a dozen eggs at once (unless I put eggs in my coolerbator on the wire above the light?!)... or perhaps I could save some newer ones for holding while I incubate the older ones first to detect viability after a week of incubation... What would you do?