Ok so I still have the Dano but I noticed something strange. The next morning I plugged it in and the buzzing was gone. Was like that all day until after about 4 pm, then the buzzing starts again! Same thing the next day! Its not the lights because I have them on anytime I play. Maybe there is more power consumption during the evening or something! I don't know, I have never experienced this before! Any ideas? I will probably keep it. I'm really enjoy the scale and the sound of the bass. i like it even better than the JJ L onghorns I used to own.
I'm still curious about the earthing? Does the buzz get quieter with your hands on the strings? If not, does it get quieter when you touch the case of your lead, assuming it's bare metal, otherwise touch the metal of the plate for the output jack.