For those who haven't visited Yonex Japan website, pls follow a link below to see Double/Single and Attack/Defense style map for choosing right racket. For Racket; N= Smash/Attack player, S= Receive/Defense player, W= Double player, E= Single player, For String; N= Hardhitter S= Control player W= Durability E= Repulsion http://www.yonex.co.jp/badminton/feature/mp/style.html