Can't seem to find much outside information or reviews other than Lace's website about these, though they look interesting. The description seems to be fairly similar from their other Alumitones, though I'm not exactly clear on how different they are from the others. From the website: Interesting that they've adopted a more traditional look to these to blend in for a "stock" look when swapping pickups. The output rating on their site says 6.8, which is the same as the X-Bar. As a comparison, the Death Bars have an output of 8.8.