And another thought to add to the equation..... does positioning the eggs horizontally or vertically to the "top" of the box make a difference? (Top being where the address info would be.) It would be my theory that the box would be most likely to make a majority of its' journey with the address pointed up, for quick and easy scanning/reading......
This fall, I received a batch of eggs that had been wrapped in thin foam around the "waist" of the egg and then set into a cardboard egg carton. The egg carton was then taped close, with a little breathing room, put into the middle of a box filled with shredded paper all around the carton. It was a very lightweight package, and, to me, that seems to produce both a breathability factor, and a lessening of the jarring factor....
And now I need to find a few random hens to put in with my 2 mystery roosters to get eggs to experiment with. My son IDOLIZES the Mythbusters, and this is soooooooo up his alley. (FWIW, he has done egg-loft rocketry competition and has done the 'egg-off-the-top-of-a-building' experiment)
Katie