Hi there. i'm going to try this set-up. Been playing with 4G for a month now and i like the control @#50. Yesterday a friend of mine gave me a set of VS Gut team 17. Now I am tinkering what tension should i use... Whether 61/59? 60/58? 55/51? Any suggestion who use this set-up is really much appreciated. Thanks! I'm a 4.5 level player all court player. OHBH like Wawrinka.