I use the 10-15% of body weight method for my younger and older snakes. The younger snakes will occasionally get a larger meal. I also feed the younger ones every 5-6 days until they turn one then I feed them every 7-10 days. What you're feeding her now is definitely adequate but you could offer her a 2nd fuzzy every 2-3 feedings if you wanted. No point in wasting the fuzzys. Once you finish those off you can try the rat pups.