So I just finished my first incubator hatch and I had 4 chicks pip away from the air cell and then die. I gave each of them 24hrs because I read that the will often hatch fine on their own if you leave them be, but each time they were dead when I went to offer assistance. The were pipping on the side of the egg, almost dead center between the ends. The humidity was above 80% the whole time from day 18 on. They were turned with a home made, non automatic turner in egg cartons pointy end down more than 5 times a day days 1-18. The temp held between 99-100*F the whole time. I had three hatch out fine on their own. Should I have candled on day 18 when I took them out of the cartons to be sure the air cell was oriented a certain way? I was concerned I may have caused the first three to "shrink wrap" when I opened the incubator to take out two hatched chicks that had been in there a long time but the humidity was 99% from the hatched eggs so I thought a drop in humidity would be fine and it never dropped below 80% even after opening. Also the fourth pipped after I removed the hatchlings and I didn't open it again until greater than 24hrs after pip and it was dead. It had a 2cm pip hole and its beak was pointed away from air sac. Any ideas??