Oh happy dance! I made the best investment -- a Brinsea mini advance. I wanted one, but couldn't justify the expense. I kept getting eggs that didn't do anything. I bought one, grabbed some eggs from the hens and the refrigerator, (from my hens, a day old), and set them. Well, it's day 17 and I thought I'd candle them. Figured the refrigerated eggs wouldn't do anything. How wrong I was! Every single one has a live embryo! I couldn't believe it. I put them back in, and I'm leaving the incubator alone except to put water in the reservoirs. Beyond that, I'm letting the incubator handle it all. So, my roosters are fertile. I'll probably have chickies in 17 days. And hopefully, I won't be disappointed again. And I might just start like incubating eggs again.