I've had guineas for a long time but never incubated their eggs (most of the time we can't find them ). We have had issues with guinea hens making nests in the woods and then being attacked. Yesterday I found one of the nests and took 21 of the eggs to my incubator. I'm going to dry hatch these at 100° as that seems to work very well with my little NutureRight 360. I really like this newest model.