Sounds like you have things well in hand. She's do fine on an every 7 day and gain the weight nicely and in a healthy manner for you. I hope you took pics of her when she came in because you'll be pleased to see her change over the coming months (and we'll be thrilled to see her progression too of course).

Good job with her. One of the side benefits of rescues is you learn so much from them. Sometimes with the easy 1-2-3 snakes your learning curve is one way, take in a rescue, deal with all their issues and so forth - boy they teach you tons in a very compressed time period. We may give them a lot with a better life and a good future but I think we owe them a debt of gratitude for what they teach us as keepers.