All I know is the strings that came stock on my darton have never stretched in the year I had them. I changed them anyway after a year because that is what was recomended. But I bet they could have gone a lot longer. And my bow was not really that well taken car of. I wanted to see what it would take. It was shot every day for a year, in the sun, rain, and snow. It also spent some time in the back of my hatchback in the middle of summer. I actually melted a limb saver of my stabilizer. My timing marks never moved from where they were the day I bought it. So spending more than twice as much on strings doesn't seem feasable to me when what I have works great. I was going to put zebra stings on it and my dealer said he wasn't overly impressed with them. He told me to just order the stock string and cables from darton, they were very good quality. He was right, like always.

Paul

By the way, if I buy a mathews, I think I am going to have them put the tiger tuff strings on it before I get it.