I tried a DOD FX91 Bass Overdrive the other day at the music store, and I turned the blend knob down a little, so that I had mostly clean tone. This seemed to give me a nice deep growly sound. I was, however, playing with an active Ibanez bass through a big Ampeg amp. Was it the bass and amp, or can an overdrive pedal put a little growl into your sound? If so, which OD pedal would you recommend out of the Boss ODB-3, the DOD FX91, or the Ibanez PD7 Phat-Hed? Please don't give me a "None of the above" answer unless your suggestion is within the same price range and also has a blend knob.