Hi, the kids and I are sitting here with our faces glued to the incubator window. Our first chick pipped at the direct top middle of the egg and seems to be zipping fine. I'm just wondering WHERE the best place for them to pip is. I don't think I've ever seen one pip at the center top before, always on the side of the top on my successful chicks (then they cut away a circle). I've had middle sides and even pointy bottoms that didn't make it. This was my first time using a turner, in the past I've hand turned on their sides. When I took them out of the turner for lock down I noticed the air sacks seems more on top with them staying more upright, does that make any difference?