I think the best way to resolve it is to lose a few pounds. Get re-weighed, done.
She will lose 10-12 pounds that first summer if she gets in, anyway. Losing weight is simple math. Take exercise out of the equation and just look at calories, and you lose one pound for every 3,500 calories you take out of your diet. That's 500 calories a day. With exercise and less calories, it's pretty easy to lose 2 pounds every week, if you apply yourself.