OK, so I lurk around the "tuned to F#" threads and now have a great understanding (albeit incomplete) of hertz, speakers, watts and volume... I also noticed that a lot of people have octave pedals... As far as POGs go, I get why they might be useful. But standard octave down type pedals? What for? Who uses them, to what effect and in what kind of music. I'd love to know. I've tried a number of octave pedals, a number of times, but have yet to find a use for them... how/what are you doing?