I just got the Head Ti Radical OS made from Austria and the original string is too bouncy not suitable to my hitting style. But the inside of the body frame of this stick does not have any indication of what range of string tension this racquet should be strung for ?? What is the ideal tension for an all-court, 4.5 player with kicker serve??.....If you guys know this data, please let me know. Thanks in advance. P.S. already checked with racquetresearch.com....doesn't have it !!