I'm only on my 6ish hatch so far, but each hatch has been a lot of eggs usually around 42.
I'm doing ducklings in a few days because a gentleman asked me if I'd hatch him duck eggs. He doesn't want to learn everything about incubating and I don't mind helping him.
Technically I have experience in incubating since I was 7 years old. My grandfather used to incubate ostrich eggs and I have a lot of experience from that. He used to have me help him all the time. He would raise them for meat and eggs for local restaurants.
He passed away and the incubating went away. Then one day I decided I was going to incubate my eggs then people started giving me eggs

now I'm an addict.