Hey guys, I am fairly new to the hobby of incubating (only four hatches under the belt) and am having trouble getting my hatch rate over 50%. When I go and check out the eggs that didn't hatch, I find that almost all the eggs were fully developed and were ready to hatch (yolk nearly fully absorbed and chick in position). At first, I thought it was a humidity problem, but then when I adjusted the humidity with another batch, the same thing happened! My humidity is at 30% when they are still being turned, and then raised to 65% when hatching. My temperature is always at 99 degrees with a forced air fan. Is there anything that might cause this? The chicks are Easter Eggers, Olive Eggers, and Leghorn EE crosses. PS, I have chicks hatch nearly TWO WHOLE DAYS before before they are supposed to (21 days). They are perfectly healthy when they do this.