The bass player for this afternoon's entertainment was playing what looked like an all plain gut set. Sounded like, too. I didn't get a chance to inquire, honestly didn't even think of it, but now it occurs to me that was not supposed to exist. His A sounded great, and E was good too. This was just good old bass playing - no slapping, no bowing, no thumb position. I guess the low cost stuff from India is all plain gut, but from the one sample I've heard, those strings sound to me very short on sustain. What I heard this afternoon was enough sustain to give him plenty to work with, if that makes sense. And that nice crispy gut attack. My eyes must have been fooling me, right? there isn't an all plain gut set that would cut it for a pro country player?