My daughter is in her last year of U16 racing, shes 5'3 and is 103 lbs. At the moment her boots are atomic redster 70s, but most of friends her size are on at least an 80 and the some of bigger girls her age are on 115s! Shes reasonably strong for her size and a decent skiier. Do you think she needs stiffer boots next year? Her coach isnt being very helpful about this.