I left my eggs with mommy till day 58 when I got the urge to cut. I got my incubator later on too. They are all PERFECT. I had one that she kicked out and it was fertile; I had to send it down to my distributor, but it hatched just fine.

As long as you keep it in the 83-85 temp span you should be fine. I had them on back heat too vs. belly heat, so it was def. more of a challenged, but they are just fine and very snappy Good Luck to you on either way that you decide.