I know I'm new here and I hate to vent so boldy before anyone gets to know me, but I am so disgruntled with so many egg-shippers these days. Anytime I buy eggs, even on
ebay, I ask them how they pack their eggs, then if I don't think its good enough, I offer an additional $10 on arrival, if they pack them to my instructions. It generally takes less than two minutes, so that equates to about $300/hour for less than two minutes of care that doesn't cost them anything, and more often than not, they don't care. Even the high dollar eggs, the shippers usually just don't care. So long as they can't be held accountable, because they "won't be responsible for Postal Mishandling", then you really just throw you good money out for bad. What does it take to get people to take just an ounce of pride in what they do???
I haven't been buying or selling for several years now, because I got so tired of being screwed out of money on hatching eggs. They wrap the eggs in bubble wrap and just toss them in a box, in all different direction, with either more bubble wrap or with packing peanuts. NO AIR CELL WILL STAY IN TACT IF THE EGG IS SHIPPED ON ITS SIDE!!! And they won't hatch with burst air cells...they lose moisture way to fast. I've received some like that today and I am just fuming...its not like I was asking her to go out of her way to do me a favor with nothing in return, I offered to PAY her for her 2 minutes of extra care.
The first time I shipped eggs, half of them broke. I felt so bad, but the gentleman gave me instructions on packing them and I sent him a new batch. I have been packing the same way every time since, and have only had to replace 2 eggs, and I guaranteed every single egg against cracking and I also guaranteed all air cells would be in tact. And it didn't cost me a thing to provide a little extra care in packing. I would use a sharpie to write the date and type of egg and told my buyers that if any broke, take a picture where my writting was clearly visible and I would replace it. If the air cells burst, they were instructed to send it back to me, packed in the exact same manor that I had, and I would replace it as soon as it was varified. I never had any returned....ever, and I never sent extras unless I just wanted to get rid of them.
In the 8th grade, my oldest son had a science project. The teacher told them to work in pairs, and in two days, each pair was to drop an egg off the "watch tower" of their school (about 3 stories tall), using only 3 items to keep the egg from braking. My son and his lab partners were the only team that passed. The class had eggs in all kinds of contraptions. My son and his partner, following my advice, used bubble wrap, an egg carton and a shoe box. I had my son add 5 more eggs to the project, and to chunck them as hard as he could..... just for the "awe" factor, and all 6 eggs were completely in tact with no cracks when they unpacked them. I may not be good at much, but by golly, I know how to pack eggs good enough to offer a 100% damage guarantee, even on the air cells. and to top it off, when I was shipping eggs, my clients had 89-100% hatch rates!!! I can't even get that on my own eggs!
Anyways, off my soap box with a deep breath and sigh. Maybe I can sleep now that I've got that off my chest lol. And you can check for yourselves....look at the air cells of your shipped eggs, and mark all the ones with air cells that move around or have bubbles in them. Mark them with a sharpie, so you can be sure and see it in 3 weeks. If any of them ever hatch, let me know so I can eat my words

I've even had cracked eggs make it to hatching day and hatch successfully, but I've never had an egg with a burst air cell hatch... and rarely even make it more than 2 weeks in the incubator. They have to travel upright with the big end up during flight to keep the air cell in tact. Otherwise, you'll have better luck shipping them ground, and waiting a week to 10 days for arrival. (they sit longer than that in the next waiting for the hen to go broody anyways, so I don't hesitate to ship ground if the seller doesn't want to take the time to pack them to my instructions). Eggs to "scamble" all that easily. You really have to shake the heck out of them to ruin them, but if the air cell ruptures, you may as well throw them out.