i have 2 speedport tour racquets, one with 17g x-one biphase and the other with 16g babolat vs touch. both are strung at 58 lbs. the biphase was freshly strung the day before and the gut was strung a week before that and had been played with for about 2 hours. today i played 1 set each with both strings. the feel from the gut is definately better by far and there was more ball pocketing felt on the gut as well. the gut also seemed to have a little more power a tad bit less spin but still alot of control. now the biphase being freshly strung it felt a bit more crisp with very good control and spin. now it is also a smaller gauge string at 17. if the biphase would stay like this after being broken in i think i would choose it over VS. im gonna keep playing with the biphase and see how it breaks in. now if i was looking for more control out of the VS i was thinking maybe increase the tension from 58 to 60 or going to 17 gauge but i don't want to lose durability?