I got a set of Smith Rockmasters(6) for my Modulus, and I did not like the B string at all. It felt like the bass lost the gutsy bottom end. Then I looked at an old bass player mag from 96 that evaluated strings, and surprise but the reviewers said that for the most part they did not like the tone of the exposed core B strings. They said that it seemed that although a good idea as far as clarity, it really did not work because it seems that the lack of string mass over the bridge caused less resonance in the bridge and body from the B string. Thought it was interesting.