Mine was right at a hundred when I got it, through a lot of cussing and tiny little wrist movements with a tiny screwdriver, I got it adjusted to right below 100, and went with that. Mine hatched perfect and on time!
I am neurotic too. There are lives at stake!!! I checked mine often and left all 3 thermometers in there. I took detailed notes so that I can go back and read it all for the next batch!
I am anxiously awaiting a call from DH to let me know if the other 4 have made it out yet.
Hooray for babies! I'm already itching to hatch more, but with 2 broodies on eggs, I need to have the incubator ready in case anyone decides to quit sitting, or abandon their nest after 2 hatch.