I bought this racket because i liked this racket very much but there is quite a difference in the demo that i played and the racket which i actually got. The demo that i used weighed 296 grams and the racket i got weighs 286 grams. I think this is a big difference and it feels too light now. My serves felt weak which really annoyed me because one of the reasons i bought the yonex was to improve my service. Longer rackets should give you a better and faster serve. Anyway I played so bad that i used my wilson pro staff classic 6.1 again and i played a lot better with this stick. I want to customize my yonex to play just like the demo. I hope someone can help me.