i'm 13, 5 foot(im short),and 95 pounds. I'm getting a powder ski but dont know what ski to get for 50% park and 50% all mountain. I would like a ski with rocker but probaly there is know ski that would be in my size. I want to get a ski with 90-100 at waist but dont know what to get. So what size ski should i get and what model of ski?