I have a not so old GQF cabinet model incubator. I have gotten good hatches and lots of chicks the past 2-3 years. This year I cannot get it to throw more than a couple of chicks per set of a flat of eggs. I think I have narrowed it down to a humidity issue although it could be another issue. Anybody have a good constant-source bucket contraption for keeping the humidity up? Any other help as to what is going on?