For the life of me I can't recall who mentioned the Electro-Harmonics Micro-POG pedal here recently... (related to imitating an 8-string bass?) but I bought a used one and it arrived today. EH makes some awesome pedals! I have an old DOD octave pedal that I think was primarily for guitar and this EH POG (non-denominational) pedal blows it out of the water. A guitarist friend has the original/standard POG (not micro) and I've always liked what he does with it, so I thought I'd try the micro. I gotta say It's a really useful pedal for bass. It does the obvious octave stuff very well - but it also fattens a clean tone with the subtlest hint of effect. All levels of the three knobs (wet dry/sub-octave/octave up) sound good; smooth, defined and undistorted/clean - resulting in a stomp-box that isn't a one-trick-pony. I feel I'd use it more in a jam session than as part of our set.., but I could also see building an original song with it as a thickening agent for our quartet. It can sound very B-3 bass pedal-esk, which is cool. What gave me confidence in getting another EH pedal was owning their Mel9 Mellotron pedal. We use it primarily for keys, which sounds great!, but I've also used it for bass. It's very expressive, responding to attack/input. Again, not for everything - but when used it sounds really good.