IMHO I don't think racket or string matters unless in a close match between the 2 juniors. Development of sound technique is the most important.
If you want to change equipment, string type and setup to soothe her game or playing style, just make sure to pay attention so you don't end up with an arm/elbow problem in the long run.
I am sure everyone who spends time on this forum does read in the racket and string sections and ask around for opinions as well.
Demo several candidates. Look at her ground strokes, serve, volley, comfort and maneuverability. Serious kid her age most likely will choose a stick he/she likes playing over cosmetic or brand.
Last edited by 10ismom; 01-21-2013 at 10:03 AM.