I had to take the Helix off I´ll report more on the Sonores thread.I´m sure you will like your Helix! I just got mine (finally) and they are stretching now. They seem to be exactly what I was looking for A middle ground between gut and steel (closer to gut but good sustain), comfortable tension but not floppy and thicker diameter. A new thicker Velvet Anima perhaps on which I played for years. I wouldn´t trade these for Hybrids I had which were related more to steel strings. Still have Temperas (Basso) on my arco bass.