Okay, so tonight is the end of day 18 for my eggs. I'm getting them ready to be left untouched for the next few days. Some of the eggs have off-center air sacs (still in the big end, just more on one side). Should I put the side of the air sac with the greatest area facing up? Do the chicks pip up, or do they go in all directions? I'm doing a final candling, I've just got the humidity up to 70%, and I'm positioning everything for hatching. Temps are steady at 100 F. After tonight I don't do anything except watch the temp and maintain humidity right? A couple of the eggs aren't 100% full of chick (more like 75% full), not including the air sac. The chicks are active, just smaller than the rest. Should I expect a delayed hatch for them? Thanks for any help.