I am still kind of all over the place with my string set up for my VCORE 100 S. Truthfully, I am not that picky with my strings and have found I like the feel of deader polys. My recent string set up was (for fun) Dunlop Black Widow on the mains and Pacific Classic Natural Gut on the crosses. I have found I liked full polys in my VCORE 100 S and have used (and enjoyed!) both Luxilon Adrenaline and Kirshcbaum Pro Line Evolution. I have not used Kirshbaum Pro Line 2 but I might just throw that in there the next time I string it up to see how it feels.