My 9yo daughter has been playing with Wilson nTour nCodes with 1/8 grip for the last year with decent success. She hits the ball well with the Wilson, but seems to me the Wilson is a bit head heavy for her. As a result, she seems to lack some zip on the ball on groundies and serves. I have been toying with the idea of switching to a racket that is a bit more head light and began looking at the Prince Speedport White and the O3 White MP. Can anyone compare the Speedport White MP to the O3 White? Any recommendations for either of these rackets for a ranked junior?