ok so i have done quite a bit of research on hatching chicken eggs. But my friend s making sure i know stuff before i atually incubate. Ive looked at quite a few sites and they say to incubate chicken eggs at 60 to 65% humidity for the first 18 days and then 19-21 up it to 65 to 70% humidity. when he asked what the humidity level needed to be i replied saying this and he said no. So what is the actually humidity by what you guys have done? Which levels have given you the best results.????