Hi everybody, I'm currently using the US version of Wilson Ncode 6.1 Tour 90. But after a 2 set play of single, I tend to get tire on the 3rd set. And my pace slowed down. The Asian/Japan version of Wilson Ncode 6.1 Tour 90 is slightly less than 12 oz. I'm thinking with less than 1 oz at hand, it should enable me to play longer. Or may be play a game of double, after single : p So my questions, 1) Is the Wilson Ncode 6.1 Tour 90 (Asian Version) a good back-up racquet? 2) Or should i get myself a Wilson Ncode 6.1 95 (US version) as a back-up? 3) Please comment Wilson Ncode 6.1 Tour 90 (Japan Version)? Anyone are welcome. Thank you.