Also, in regard to distinguishing between the tone of the Hagstrom Bisonic, Novak Bisonic, Dark Star, etc... I think it would be tough unless it was a very controlled experiment, where you would have to have the same bass, with the same strings, through the same amp, recorded the exact same way, with the pickups in the same position(s), to be able to truly and accurately identify exact differences. They are all in the same family. As I mentioned above though, the ChiSonic is a bit of a deviation though, so that might provide some slightly more obvious differences. The Guild humbucker from the 70's and the Guild Humbucker from the 90's are both completely different animals when compared to all of their single-coil counterparts so far discussed in this thread. They sound good to some folks and bad to others, but they definitely don't sound like anything in the Bisonic family.