Not all the way out, just the pip- hole? My last 2 hatches the chicks didn't pip until the late morning or afternoon of the 21st day and many aren't even out by the end of the day or until the 22and day. I keep reading of chicks pipping on day 20 and out on the 21rst. Am I running my incubator too low temp-wise? I've been staying at 99 for my home made styrofoam incubator with fan. Should I bump to 100 for the next hatch?