I recently placed an order to re-stock some MXR pedals. Since I'm always on the lookout for new options for Overdrive, I also ordered an M89 pedal just to see what it's all about. Turns out it doesn't do anything I don't already have covered, so I won't be keeping it. The idea behind the pedal is the exactly the way I like my overdrive - it allows you to mix a crunched version of your signal with the original clean version of your signal in whatever ratio sounds good to you. And there's a tone knob that lets you take some treble off the crunch if you want. So here's a chance for somebody to get a new M89 pedal at a used price: $89 shipped (they're usually $129.99). Let me know if you'd like to give it a shot! The pedal is not listed on my website, so just PM me here or call me @ 540-961-7655.