I feed a variety of feeders to my woma and kings. My woma would eat a meal of a rat fuzzy + large mouse or large mouse + 1-day old chuckling. For the chickling, I alternate every other feeding or 3rd feeding. For the rat fuzzies before I ran out, I would offer every meal. Same for my kings. There was a study done on nutrition between chickling and rodents, and they concluded that it was about the same. I need to find that link, I just read that like a week ago. The poop was no different though, but I was not feeding chicks every week.
I don't do that with my ball python or my boa. By mistake, I offered a rat to my boa who never takes rats, and he took it (yay). But that was a mistake and I would not play around with that as Dumerils boa can be picky eaters as well. He is now on rats and it is staying that way.