Hi everyone, I have a 10 yrs old junior (5'1) who has been using Wilson K Factor KSixOne 26 Junior Racquet for couple years. His swing is fine but does not produce a lot of power when striking the ball especially when he returns against a much bigger and older kids. It seems that his racquet is too light in my opinion. Should he get a regular size adult racquet? Any recommended decent Wilson racquet that is around $100 or less? Any help is greatly appreciated.