Thanks so much @GrayRodent and @kageri! Awesome feedback. As for nuts, I truly rarely feed them any - perhaps once every month or two months, but for the sake of the cuteness of them munching on video, I will give them one or half for effect. As far as diets go, I definitely stick to Timothy hay and 1/4 alfalfa hay, with Mazuri chinchilla feed, clean water, and treats include goji berries, dried apple slices, marigolds, hibiscus, mangoes, and a variety of sticks and safe woods. I realize it may look like I treat them a lot, but I've had the luck of having some great breeders to learn from and also obsessively learning about chinchillas and what's best for them.
The ladies were REALLY good in the video - much calmer than normal, and not really indicative of how they are. I try my best to show them love while remaining strict - I don't tolerate biting on anything other than their cage and provided woods and certain pieces of furniture around the house, and the moment they do, I put them back in their cage to try and send a message. I think it's a trust thing, as long as they're good when they're out, they can have more freedom. Some of my chins aren't smart enough to understand the message, but some of them are. I DO have one really nonreactive chin, but I think that was just luck. All the kids will have a feature in the videos so stay in touch! I'll also post some videos as they come up on the forum.