I plan to set mine Monday or Tuesday, in my homemade incy. Depends on when my shipped eggs arrive. I have been told that 1 week is optimum for age of hatching eggs, and that after 10 days the expected hatch rate deteriorates. I have a dozen plus, shipped Australorps coming, and picked up a mixture of other breeds while on vacation. I'll have Polish, Barred Rocks, Cuckoo Marans, Amraucanas, and Blue/black/splash Rocks. 55 or so plus extras in all.
Don't know what I will use for a brooder if more than 1/2 hatch!! This will be my 2nd hatch. I did a trial run with local eggs to verify that everything is working correctly.
.......stan