Let us know how it works for you. I think it works great but there are a couple or so high on the scale BYC hatch experts that think you will kill the embryos that way. One of them was going to come up with a study to prove it but never did.Thanks for reminding me of this.( Not turning the eggs immediately) I will have to try that with my next batch of shipped eggs.
From what I can tell, there is a slight chance that the blood vessels could grow too much on one side cutting off blood flow. If that were to happen, then the embryo would die around day 10. I have not seen that happen when not turning shipped eggs and likely the person running the study did not either--the reason it was never completed?
After they have been incubating for three days without turning (only rest the ones with detached air cells that long), check to see if they have re attached. If so, start turning them. If not, go up to 5 days.
Best!