I bought two turners and hached some batched of eggs. The chicks came out in this week. While all of them came out two days late, chicken on the 23rd, and contriux quail on the 19th. And I found the temp in the bator is different. The corner is 2-3 degree lower than the center. And the bottom is 2-3 degree lower than the top. I used to turn the eggs by hand and most of the eggs hatched on the 21th for chicks and 16 for the quails. I added a computer fan in my bator and see if the same situation happens. By the way I used one little giant and one Hova. Let me know your experience. Thank you.