Just put a new set of Spirocore Mittels on my Pfretzschner bass. The A string was on the twangy side, as they sometimes are right out of the package, the D was just about right, but the G and E were extremely dead sounding (no top end liveness whatsoever) - more like what I would expect from Flexocors, just to use an example of a string I have experience with. I'm aware from previous experience that Spiros take a considerable amount of time to settle in, so the twanginess obviously doesn't bother me, but the dead strings are unusable - I can tell that even after settling in they would continue to be out of balance tonally with the other strings. I didn't change anything setup-wise or in any other way that would be affecting what I'm hearing. Chapter 2: What's even more distressing is that I returned the G and E to Lemur (I live within striking distance) and got replacements - while the new E was what it should be, the G was even more dead than the first one. In hindsight, I should have taken my bass in there and strung it up on the spot, but I didn't. Before I go back to Lemur I thought I'd post this and see if there are any similar experiences out there. Could this just be a bad run of strings?