Years ago when I switched from a hand me down Bear recurve to a compound, the only string available was black stranded and either fully wrapped, or partially wrapped, or was a nylon cord. (yep it's been awhile) Now I'm seeing a variety of strings like Dacron, flemish twist, and fast flight. (just the first few that popped into my mind.) I also see that bows must be rated for the intended string (the fast flight anyway). So what gives? What is a fast flight string, what makes so damaging to bows not rated for it. What string is the quietest? What string type is the easiest to tune the brace height with?