I'm crossing my mauve orpington rooster over a paint easter Egger project I've been working on. There is 1 eggs due to hatch Monday from this cross as it was the only fertile one in the batch. So I could get a black/blue/mauve/chocolate chick. If it's black or blue it's a Cockerel carrying...
Ok, well I went ahead and set them about 30 minutes ago. Should be safe that way. May set some more later today too. I don't think everyone is done laying for the day yet.
I'd leave the lock down eggs in the wonky one. As said before, they can handle a larger swing and your temp averages around 98 in the middle of the egg, which will be fine.