When I used incubators from styrofoam to homemade wood cabinets I took them as they hatched still wet aswell. They went right into the brooder no problemThat depends on the type of incubator you're using. Some incubators don't return to stable humidity very quickly or even when the hygrometer reads higher after opening quickly I have seen signs of it causing the membrane of the other pipped chicks to dry slightly. I do my best not to take chicks out while there are other external pips unless I have a chick that just popped out of the shell. When you have a newly hatched wet chick it seems to return the entire incubator to a more consistent ambient humidity the quickest. This isn't to say you can't get away with opening the incubator, I just try to be patient and don't open it more than necessary. It seems to make for a smoother hatch. Plus I like to let the chicks fluff up a little bit in the incubator so that they don't get chilled when I move them.