HA! that is what I was afraid of. I would think others would be doing this more often if not. I have been wanting a Hot Rod deluxe III for various reasons, also for the super Jerry clean on it. The presence knob is something different for me and I liked it too. I got some new filter caps and tubes coming so I wanna see if I still love my twin. Using it as a preamp fried my 400 volt filter caps, and the tubes are shot. I am replacing them with 500volts. If I don't see the need it will be traded in to the guitar store for the deluxe! Unless someone here wants to buy it for $450.