One thing that is driving me nuts is my two little chicks jumping around and rolling the other pipped eggs around. I'm sure it's not a big deal but still has me a little uneasy.
I have a couple that have pipped. I just put in my extra papertowels to increase the humidity.
I put the eggs in severely nearly-cut-to-pieces-to-preserve-good-ventilation styrofoam egg carton bottoms to keep them from rolling around during the hatch. The rolling around has always bothered me from way back during my first hatch. I thought for sure that the chicks were having a harder time because they were being jostled. But who knows?