I use this string for classical arco playing, in orchestra & personal practice. Great feel, a bit looser, in a gut-like direction, & more overtones than the traditional arco steel strings of the past we all know. it's also a bit brighter, in a good way, & I'm excited to see how it settles in & ages. On the con side, & as a fan of gut, I'd love to see a slightly thicker version, but keeping the tension & feel the same.