After using some polyester strings, I've decided that I should be moving to multifilament until I can take full advantage of poly but I need a slightly cheaper alternative to Wilson NXT. When I tried NXT in a K90 demo, I really liked it and when feeling its surface, it seemed to have a "grippy" type of surface. It wasn't as "slippery" as other strings, does anyone know the exact term for this? I'm looking for a string is similar to this for under $10. Tecnifibre's E-Matrix 17g looked interesting but I want to get some of your opinions before deciding. Thanks in advance!