Found this, thought I'd share. Pretty interesting. Demystifying the bowstring. - Free Online Library and this from BYC BCY Fibers
Interesting article. It mentioned that PSE builds their own strings for each of their bow models. Sometimes I do wonder about that because my string, which I service on the regular, had worn after 2 years. I then replaced it with a 60X Custom String which most people do when they buy a new bow anyway.