Ok... I've been using my n90 for about a week now. I got it strung with Prince Original Syn. Gut 17G @ 47lbs., and added TournaCross string savers on the sweetspot. Question is: Why does the strings feel like the tension is over 60? Is it because of the frame stiffness? or did the stringer string it wrong? Cuz I checked with the stringer the day I strung the racket, and they told me it was at 47. So yea. Can anyone help?