Recently, I stringed my Wilson Tour 90 with E-Matrix @60. It is the most powerful string I have ever tried. I have to adjust my swing a little to compensate the extra power, but overall, it is soft with great playbility. I believe, for a non-stringbreaker, E-Matrix is a great buy, especially if you string your own racquet. I have never used natural gut and I heard that natural gut has same characteristics, so my question is whether E-Matrix plays similar to natural gut with regards to playbility, touch and softness. Thank you all in advance for your comments.