Did you run it for a day to let it heat up and see if the temps are stable?
As for the poll. I set anywhere from 2 to 80. My incubator will hold over 120 and the hatcher another 50 so I can stagger hatches. It gets awkward in the hatcher if I want to pedigree the eggs/chicks though.
Well my first time incubating was not so great! I am so devastated. I did have 2 hatch and are in the brooder. I had the third hatch, and died in the incubator while drying off. And the fourth died before fully hatching. I dont know what happened. All of the settings on the incubator were fine and stable. I dont think anything else is going to hatch. It is day 23 and there is no movement of the eggs.