Leave the chicks in???

[Rose98]

Just gone into lockdown with 5 out of 5 eggs alive and well formed.
Just wondering though do you or do you not leave the chicks in the incubator till all eggs have hatched????
Some say you do as it is a danger to open the incubator while others are hatching and it also helps the others hatch by stimulating them.
Some say you don't as the chick rolling others eggs that have already pipped can cause drowning.
I have had success and disaster both ways and just wondering what most people believe as I want to give them the best possible chance each to hatch.

 

[ChickenCanoe]

Best not to open till they're all out. Opening the incubator will immediately lose all that valuable humidity. That will immediately shrink wrap those in the process of hatching as the membrane dries quickly.
If you are worried about the chicks rolling eggs, set them upright in an egg carton bottom - preferably with it trimmed down a bit.