Becky,
Don't be afraid of gradeskips. I had several then they were taken away when we moved to a less tolerant school district. It was not until I got into my teens that I could advocate for myself. I was always happier around kids 3-6 years older than I.
My DW was successfully gradeskipped early and then they moved as well. By 8th grade, despite clear indicators of her abilities, she was ignored, and she began to focus on sports and social things, and did not pick up her stride until the last few years.
Your DD is fortunate to have a mom who is aware of and advocates for her as is your right to do so.
