old version is fine.....

can u pm me the
1. specs of the racket? 3U?4U? / G4? G5?
2. serial number on the shaft and cone of the racket?
thanks

its all depends on your style of playing the game, if u have strong arm and wrist and like smashing alot, AT 700, AT900P suits u, coz they are head heavy type of racket and with extra stift shaft. but becoz of head heavy, the racket may cause u a little slow response in defending.  while for Nano 9000 (X and S type), 1 is head light type, extra stift shaft and 1 is even balance with stift shaft, meaning there give a little ' lighter' feel to you and hence u can control ur stroke and placing of the shuttlecock better. hope u understand what i m trying to say, coz i m not good in  explaining staffs. u need to feel the racket urself first, then only know which suits u, the best way is to borrow from friend and try a few stroke.

U is stand for weight of the yonex racket. 2U racket is heavier than 3U and 3U is heavier than 4U. while G is stand for size of the grip of the racket, G3 is bigger than G4 and G4 is bigger than G5.

if i m  not mistaken
AT series got only 3U and 4U , G3 (mainly in europeon country) G4 and G5
Nano series got 2U and 3U, G4 and G5
muscle power got 2U(very hard to find in market) and 3U
ti-10 series got 2U (very hard to find in market too) and 3U

hopes that could give u a little help, anyway if the above fact got any incorrect information please notice me.