I was just wondering if anyone had ever even heard of them. They don't sound half bad. I looked them up and they are about twice the price on web as opposed to the price in the store. I have a guy around here that builds his own that hold up really well, I just wanted to see what else was available. I haven't had to buy a new string ever. I normally just up grade the same time and get a new bow. But I love the diamond black ice and won't up grade for a while.