Well... I thought I'd game nature and it seems nature decided to game me right back. I put in 60 eggs total to fill 44 spaces thinking at best I'd get maybe a 60-70% viability rate since I collected these eggs on cold days (near and under freezing). Some of them were honestly frozen feeling to the touch. Well lo and behold, I have 50 viable eggs, aka 85%- and not enough room. Thankfully I had a friend with an empty incubator, but appears that nature has it's own version of Chicken Math!