FWIW, MyShire farms gives a 50% hatch rate guarantee. If you order 50 eggs from them and fewer than 25 hatch, they'll refund half of the cost of the eggs regardless of what caused the low hatch rate. I'm not aware of any other hatchery that offers such a guarantee, but they do and they honor it. My first order of 50 eggs, I received 60, 50 appeared viable at lockdown, but only 24 hatched. It was my first time incubating and I'm sure the low rate was my fault. During the process, I contacted them, for advice only, and not expecting a refund, but they gave me one anyway.