OK, jumping in a little late here but I wanted to share a little of my recent 'shipped' eggs experience.
Received 12 in a badly smushed box, none broken but on candling was able to make the air cell rotate completely to the small end of the egg on 5 of these babies. The others were badly saddled. Anyway, I incubated all of them and then on day 7 I candled those slippery 5 eggs, saw no growth and cracked them open. All of them were totally scrambled, I mean TOTALLY. The yolk, albumen and the membrane were all mixed up together! The remaining 7 were growing just fine even though the air cells were so badly saddled. I was incubating them upright, not on their sides (I have both kinds of turners), and then come lock down, I moved them into cartons and kept them upright. 1 egg quit, probably around day 14, 1 died in shell during hatch

, but the other 5 all hatched beautifully. The short end of this post is to say that I recommend incubating potentially rattled eggs upright. Just my two cents! Good luck with your hatch.