Hello, I searched the forums and really didn't find a good topic about these strings. Well.. I currently have these strings on my M-Fil 300 that I bought from someone here on TW. I think the string is great, awesome feel to it and alot of control/power. The strings moved alot more than my current strings I have on my other M-Fil 300 (Babolat Pro Hurricane 17), but maybe that's because the user used it for a bit longer. But overall I loved the feel of the strings and might put it on my other racquet when the strings break. I have it currently strung at 60. So, now I am looking for your opinions about these strings and your experiences. I have heard that these strings are really easy to break, that true.