Last night we saw the John Mayall Rockin' Blues Revue in Elgin, IL. Eric Bibb, Robben Ford, Mayall and the Bluesbreakers. I was in the second row center, right in front of Robben. Recipe for killer blues guitar tone: Les Paul > Zendrive > Super Reverb. His amp was NOT miced, just raw guitar tone from his speakers to your ears. We spoke to him after the show and he said he really liked the Zendrive. If you get a chance, check it out. A great opportunity to hear the Zendrive in the hands of a Master. We've all heard a lot of great tones, but for simple raw overdriven tones it's hard to beat that equation of Les Paul > Zendrive > Super Reverb. I've seen Robben several times and really did not miss the Dumble one bit. The Zendrive is the real deal! FWIW, Rick PS Eric Bibb and Mayall and the Bluesbreakers put on a great show as well. Buddy W. smoked on slide thru his Dr Z.