After hitting with my Nsixone Tour, I decided to inspect my racquets for any chips, scratches, etc to admire its condition when I noticed what looked like a piece of my hair on it. Upon further inspection, it was not what I was hoping it to be. I believe I have a small inch long crack on the upper shaft area. on one side only. However, it is very thin, and only noticable with close visual inspection. Is this something I should be fretting about, something that will eventually break it down and snap my racquet in two? Anything I can do about it?