I'm so jealous of the 40. One day...
There was a thread on here about a month ago by a guy who was doing his first incubation in a 40. He had great results, and it sounded every bit as dependable as the 20.
My first hatch in a 20 was drawn out from days 21-23. I bought a Spot Check to double check temps, and I was averaging about a half degree low. I still had a 90% hatch, but it was slow. I bumped the temperature on the display up to 100.0. I've done 4 hatches since then, and every one is like popcorn on day 21 now
The 40 ~
The ova easy ~