Just wanted to give an update.
After reviewing my dd's math scores, there is definitely a trend toward an issue in computation and algebra. She always scores very high in geometry and data analysis and uneven (especially in the last year) in the others. I also learned that her switching levels may be more for her stress over math, than her ability. So, we'll be looking into ways we can help her with this. Not yet sure what that is, but we're on to something here.