I have tried to hatch eggs 5 different times trying 5 different ways. High humidity to start with 50% then lockdown at 65%. Then humidity at 40% lockdown at 70%. Then humidity at 40% temp at 100.4 ( temp in the first twq was 100.4) switch eggs from my 1588 Incubator to a little giant still air temp 100.8 humidity 75% and so on I only get 3 or 4 out of 12 to 18 eggs to hatch. There are chicks in most of the other eggs but they are dead. What am I doing wrong. I love hatching but not like this. Help.