I am currently working on hatch # 4, I've always laid the eggs down, I have a janoel 12 incubator, wasn't expensive at all really, it holds 6 eggs, my girls lay large to extra large eggs. my first hatch, was six out of six, the last two were 5 out of 6, I did a eggtopsy on the one that didn't make it and it seemed it might have drown. I didn't on the last one. I believe I've lost one on this hatch.. the janoel is a auto-turner it rolls the eggs back and forth, guess like what a momma hen would.. I've had one of my eggs pretty much pip right in the middle of the egg, by the time that all was said and done, it had split the egg shell down the middle and it's doing just fine, I've read that 1 one is 24 hours after you set them. my hatch right now, went on lockdown last night, so hatch day is the 25th, I've had them hatch as early as day 19 and as late as day 24. All of them doing just fine, I try to let them fully fluff out, but if I've got 3 of them running around in that small space, I'll take them out and let the other hatch in peace..lol. have not had a issue.