Just picked up the JHS DB and it has exponentially exceeded my expectations. I only have got maybe an hour on the pedal but man it is sweet! Pretty much anything I dial in sounds great! From what I have experienced so far is you get a heavenly lead tone when you stack them together. I set the toggle to the right to go into the 808 side first then to the MG.......it is a totally killer tone, I could not stop smiling! I will probably have the MG always on but I need to play with it a little more but this pedal is not going anywhere.