The packaging is wonderful. I am on day 14 of 23 FBCM eggs and the shipper packaged them the same way. Three eggs were clear and one is a quitter so at day 14 I still have 19 viable eggs. I really do credit that to the shipper doing a great job with packaging and also just a bit of good luck with the USPS handling of this particular package.
There certainly is a wide array of opinions and advice about how long to let them rest for and whether or not to turn or how long to wait before turning, as well as whether or not to incubate upright.
I'll add my two cents and you can take it for what it's worth... I believe that turning the eggs is extremely important and that they should be incubated upright and turned at a 45* angle at least 5 times a day. If you are manually turning, do it at regular intervals for an odd number of times per day. I do think it helps for them to be vertical because while in nature they lay horizontally, they don't have to deal with the issues we have with them being damaged during shipping. Vertical helps set the air sac. As far as time to rest prior to incubation... I think that in most cases, 12 hours is enough. The point of resting is to bring them to room temp after their journey in hot/cold storage. Anything after that and you have to weigh the benefit vs the risk. The benefit of further resting is presumably that the air sac has more time to set. The risk is that the eggs are already aging by the time you get them and every day you wait to incubate is a day they lose viability. So it's a balancing act. One more thing. I discovered that I'm not very good at marking the air cells. The point of that is to monitor humidity. I find that weighing my eggs prior to incubation and then every time I candle them gives me a very accurate picture of whether or not I need to raise or lower my humidity based on the amount of weight the eggs have lost. Good luck! I hope you have a great hatch!
Here's hoping your hatch goes well!
I think it is best to leave eggs to settle for 12 to 24 hours before setting in incubator. The first seven days is really important for turning as it incourages good veining and embryo development. If the eggs are not turned the embryo can stick to the shell and cause development and hatch issues.
