I usually hand turn all of the eggs I incubate, but I have a turner and have a lot of eggs going in so I want to use it. So, i get it out, and it's supposed to be a turner for any size egg from quail to duck, so there are yellow racks with round holes I assume eggs would be positioned in, but screwed on top of the racks are metal racks. Are those just if I were doing goose or turkey eggs (if I can do goose/turkey)? Do I take those off for chickens & bantams? Because, if I don't the eggs would not be centered in the middle. I'm sure one of you has this turner and can help me out. Thanks