First of all, I would like toask for your help on picking a new string for my new racuet I am gonna get. I'm looking for a polyester string , preferable max of $12, for my Wilson Prostaff 5.1 SurgeX. I really dont know what to do, everybody is listing on these boards so many different combos and types of strings I think I have made up my mind....until I read another post! I am looking for feel and playabitlity and durablility would be nice. I am about a 4.0 player. Second of all, how does everyone break their strings after like 2 sets? I've had my strings for like 4 months in a dif racket, and yes, they do have notches in them, but they're still playing. HELP IS APPRECIATED. THANK YOU!