Their first fine-filament Zyex string appeared in badminton recently, with the well-received ZyMax string. link It's available in the 17 and 18 gauges so far, but others are coming. You can see from the photo that this is the first Zyex multi that doesn't use a number of fairly thick filaments. Instead, it uses a lot of very thin ones, like a typical high-end nylon multi. It will be interesting to see how this performs. I assume it will be even softer than regular Dynamite, given the thinner filaments.