Can anyone confirm this thing , i was browsing through MBS when i suddenly saw Sonic Metal on the frame . In the Yonex website there is no sonic in 750 . Here is the link http://www.mybadmintonstore.com/shop/product_info.php?cPath=25_26_168&products_id=1759#.Um8OaPl59Xl . If it is unusual for 750 to have this thing , then my wallet needs to get out of my pocket . I hope it does because i love sounding rackets .