I am getting consistent 60-70% hatches. Not bad, but I'd love to see it higher. Here are the stats: I'm running a Hovabator with circulating air and automatic turner. Temp for my first two hatches was 99 on my thermometer (which does not measure half degrees), but because they were late I raised it to 100 for my third (and most recent) hatch, and got the same hatch rate, but they hatched right on time. My first two hatches were Indian Runner ducks. I ran humidity between 50-60% and misted occasionally (roughly every other day) with warm water. I washed the eggs, because they were so filthy. Temp for the hatch was 75-85%. Third hatch was bantam chickens. Humidity was 45-50% for the first 18 days. 70% for the hatch. The eggs were not washed. Hygrometer has been calibrated, but thermometer has not. Eggs are collected daily, stored in the house at around 75-78 degrees for no more than five days, in egg cartons with the pointy end down. None have been shipped eggs. The bantam chicken eggs, however, were all found in a hay stack and set the same day we found them--we know four were very fresh and the other two slightly older, based on the size of the air cell. But of the two that did not make it, only one was one of the older eggs. For all three hatches, eggs died late, after at least two thirds of the incubation period. All pipped eggs have hatched successfully. Hatchlings have been healthy and hardy, except one duck who was crippled at hatch, was helped out of his shell, and died today (at four weeks of age). Another apparently healthy duckling from my first hatch died at a week of age, which may or may not have been incubation related--I don't know what killed him, as he seemed completely healthy up until that last week. However, he was helped out of his shell during the hatch, as he had pipped in the wrong end. I believe I may have had him upside down in the incubator for part of the incubation period (I was a beginner--one of many mistakes). The current hatch is a friend's duck eggs. They have not been washed (hers aren't as disgusting as mine always are). I would love to see an 80+% hatch rate on this one, so I'm very interested in any tips or ideas. Thanks!!!