Hi, thanks for asking! Yes... day 20 started at about 5pm yesterday and when I got up this morning, I could hear some quiet cheeping before I even looked in the incubator! I was so glad! One had hatched and another had pipped. Since then two more have hatched, but the one that had pipped by morning is making quite slow progress, so we're a little concerned about that one, but keeping the incubator closed and just watching!
We had a mix of white and brown eggs and so far all the eggs that have pipped and hatched have been the white ones (White Star or White Star Buff crosses). I don't know if that's chance or if those would be likely to hatch sooner.
I'll let you know of further progress!