YONEX POLY TOUR PROAfter a few weeks of testing Yonex Poly Tour Pro our team couldn't help but marvel at how far polyester strings have come. As you will glean from our comments, what separates this string from earlier generations of polyesters is both the friendlier feel and longer lasting playability. Thankfully, the control we've come to expect from polyester was there in spades. Our two playtesters were able to achieve maximum stroke speed without having to worry