I candles this morning, day 10 for the Banty eggs and day 3 for the duck. Duck egg now has a small black spot inside and a nice air cell forming. The chicken eggs have an air cell and big dark patches. Definite changes from the 120 degree day in the incubator, there was no air cell or dark splotches that day. I'm not seeing any obvious veining yet but I only noticed it a tiny bit on thither duck egg. So, not giving up hope yet.