I had an old green DOD FX25 2 knob and it absolutely killed for slap solos, and it got left at a gig a few years ago. I got the three knob version and could never make the sounds I got so easily with the first one, so I'm on the lookout. It doesn't have to have the best cosmetics but it has to work well and can't sound "scratchy". I will pay better money for a pedal in tip-top condition cosmetically and otherwise. Please send me a PM if you have one you are interested in getting rid of.
