The new Solinco Revolution string (blue)  on the Wilson Hammer 4 is not bad. The string is co-polyester and is supposed to be for power and control. I played quite well just now. Maybe my tennis skills have improved.
However, it does not feel like the Wilson NXT Tour 16 which I have on the other racket. That feel was quite good. Of course, that is multi-filament synthetic. 



The Six.One 95 that I tried a few weeks ago was superb. The racket is heavier, but is more balanced.
It has a smaller head size  and the frame is thinner. Very good control... The one I saw had different strings for crosses and mains. Orange and white... 
Pro racket... pro self customization...  pro player...