Hey all, I've bought a N-Code N4 from Hong Kong 5-6 years ago and after a month of playing with it, I had it restrung to 23lbs. I only played a few times with the new strings before the strings broke. Upon closer inspection, I found out that there was this crack/hole that was cutting into the strings. Have you guys had this happen to you before, and how fixable is it? Aside from this hole, the rest of the racquet seems very sturdy. It's been lying around forgotten for a few years, and I would like to fix it and use it as a backup racquet.