Yeah I wouldn't be trying to get her to literally lose weight, but you want to slow it way down so that her bones catch up. If you are weighing her, try to do it the day before feeding so she is empty and you know you are getting the most accurate, meaningful numbers. See if you can get her to almost maintain her weight or very slight gain until her shape is how it should be.
The chart does say every week, but I think that is excessive for non-breeders. Seems silly to me they have different frequency up till then and suddenly breeders should be fed the exact same as pets when one is burning TONS of calories to build follicles, then eggs, and lay, and the other is just chillaxin.I feed even my breeders every other week most of the year, it's only late fall/early winter, and then for about a month after laying that I'm really letting them pound rats as much as they will eat.