I'm going to try to hatch some of my eggs. I've read a ton of stuff, but need some clarification on turning. When you hand turn, you turn them 3 or 5 times a day, and it appears you turn them 180 degrees on their sides. Some of the homemade turners appear to only tilt eggs, say 45 degrees to the left, then 45 degrees to the right. Is this correct, or am I misinterpreting the pictures? How much turning/tilting is sufficient?? Thanks!!