I have run split hatches in my hovabator 1602 and it has an automatic turner in it. I leave the turner in, and pop out a couple of the rows, slide in a little narrow basket with shelving stuff in it for footing and put that back in. I don't go super fast, but before I put the lid on, I pour a half a glass of almost hot water in the resrvior, and the temp and humidity just jumps right back up where it was before.