It, and all my other racket, is strung with a regular 27lbs and on BG66 Ultimax. Heck even my 5 years old Bravesword 12 was treated the same and it goes strong 'til now. I mean some pro player like V Shem would frequently need a replacement racket during matches, if the 90S couldnt even handle my modest smashes. Im nothing close, of that im sure lol. Exactly, I'd expect some chips and cracks on the oval frame if i mishit or clashed, not a fractured main shaft. Just looking for statistics figure of how often this happens, but still hoping that you guys wont undergo what I had.