OK you can't compare your own eggs with shipped eggs, ALL new ball park, are you letting the shipped eggs settle, perhaps you need to let them settle a little longer. Give them 24 hours if you are doing that already then give them 48 hours. see if that makes a difference..
Okay no I let them sit 8 hours. I will increase it to 24 hours. I'm bidding on some eggs on eBay so if I get them I'll let them sit 24 hours.