Dean Markley's Helix strings- it's been 3 weeks & they are still holding out. Some parts are beginning to look stained (llain strings, mostly) but no rust detected. A friend of mine tried them the other day, according to him, the wound strings, due to the compressed winding technology, makes them feel smoother. So is this a good or bad thing? Good if you have this need for constant movements. Bad if you tend to peddle some bass notes & you want a firm grip there, it feels 'slippery' but it's not excessively so, of course.