I'm just getting back into playing more bass (guitar originally with some lousy bass playing every so often) and have been trying to get some time on every interesting style of bass I see. Recently I ran across a very used fretless Cort Curbow at a Guitar Center. I did like it, however the strings seemed very odd to me. They had hair or fur or something, maybe 1/4 inch long strands, sticking out between the wraps down their entire length. Did I just see something common but new to me, or did the previous owner like rubbing his cat on his strings?