Chicks zip the eggs just fine, but can't tare through the egg lining. I left them in the egg for 15 hours after they broke the shell all the way around and then I helped them out. The chicks are doing great now. I had the humidity 45% to 50% up until day 18 and raised it to 65%+ the last few...
I decided on a (TX-7) so I ordered from Lyon electric and they hold your order for a week before they ship. It is then sent by UPS which will let it sit for 4 more days and then move it from LA to Atlanta in one day. Then they reschedule delivery dates a couple of times. I hope I get it...