I don't know about all that dude, but for the money they do sound pretty good. I installed a new pre amp, a pickup, a carbon fiber nut, and a solid contact type bridge. I can honestly say that the difference now as opposed to the way it was stock is x10. It is one of my favorite basses.
I know I have a old pic of it here on TB somewhere.
When you realize how perfect everything is you will tilt your head back and laugh at the sky. ― Unknown (but often attributed to Buddha)