So, I am going to set some of my Barnyard Mix eggs. I read in "Educational Incubation and Hatching" that colored eggs neeed less humidy to hatch. My incubator is circular, should I put the more colored eggs in the middleOn the outside? Should I rotate all the eggs, because my first hatch with this incubator noticed that the ones in the middle are a lot hotter. Should I not put an egg in the middle? Also, is it OK to incubate an over-calcified egg?