Hi, On the Balbolat official website, the stifness of many racquets is 72. On the TW website, the stifness of the same racquets are 69 for the APD and 70 for the PD and differents stifness for the plus versions and the light version even if in the official Balbolat website is still 72 of all these racquets. Who are right? The Babolat website are TW website? Generally, the website of compagny has the right spec for the racquets they bild, no? Any comments on that topic of the stifness in the spec beetwin TW and the website of racquets compagny? Sorry for my bad english.