I believe that Sally's method involves storing the eggs pointy side up in an egg carton which she encloses in a plastic bag. There is no turning of the eggs and they are stored in a cool place for extended periods of time which in some cases may be longer than your 21 days.I am in the "semi" hatching mood. between illness and other things they just kind of build. I will get one more hatch before winter makes it impractical to try and ship them off to anyone. This is my chance to get some birds south.
I just store them on a turntable so they are not just lying on one side. I wish toad eggs were not so touchy, I think some of it is just poor fertility from the baby Huey size roosters. Of course the one that got tangled in the electric fence today won't have good sperm for 6 weeks now..Poor guy.