Who ever decided to share to the world that "2 hides are necessary for Ball Pythons". I see it all the time "1 on the hot side, 1 on the cool side".
I'm just going to come out and say it....
You don't need 2 hides! 1 is enough.
Because most new people are using a completely open glass aquarium, where hides are needed for some cover. I use a rack and only use one hide because it's already pretty dark and enclosed.