On an 03 tour mid plus. I took me well over two hours but the sense of satisfaction I got at the end was worth it. It seems just as good as my other racket strung by a professional. I have a ats super stringer II and I must say I am quite happy I bought it. Any way the string I strung was unique big hitter blue 17 at 57 in the mains and psgd at 59 in the crosses. Can't wait to try it out and I will tell my thoughts on the string setup.