Lux Al Power for Juniors
My son started to use it when he was 14 and he has been really happy with it for a little over two years. His coach warned us about the potential issue with tennis elbow. But he was ok. I string 10% lower tensions, 55 main and 51 cross. Alu Power allows him to hit the ball hard with lots of spin for control. It works well for slices and volleys too. Drop shots and drop volleys seem to be tough to control, however. My son would break the main after 3-4 hours of hard hitting on hard court. In some close matches, he would switch racket before string break as he knows he is missing shots. The string only lasts about 2-3 hours on clay.