Is she hunting or just target shooting, those little razors are really stiff, put some on the daughters arrows and they do great, also know an adult man that uses them and says they are phenomenal, but he and my daughter only target shoot, no broadheads. I would think though that if it's an extremely well tuned arrow and good form is involved they would guide a broadhead fine especially 4 fletch and a smaller profile broadhead, but the broadhead shooting is only speculative. I plan on giving it a try one of these days, just haven't gotten too it yet:)