I tried these strings because i like Pyramid's Pure Nickel Classics strings, which have a round core. I tried these basically because they cost less, and balanced tension is nice. These are good strings. Indeed I noticed the balanced tension which helps with the feel, however to me the Pyramid round cores sound better. And I'd like Pyramid to introduce these sealed plastic bags to heep the strings fresh. By the way I have no idea who Herman Frank is, I would like to see him smile a bit more :)