Well,,,the pedal I tried at the store killed the hum, but it almost had a microphonic caracter to the sound, in other words it changed the sound of the guitar rather drasticly, it almost sounded like there was a tiny bit of a reverberated sound, & when I tapped on the pedal, it was a loud noise when I tapped on it with my finger.
I definately think there was something up with this pedal because, if all those pedals sounded like this one it would've been trashed from the get go, I don't know how anyone would let this tone shaping pass, totally unacceptable.
But like I said, this one I tried, there must be something wrong with it & I'll try another one at my first oportunity, too bad the store only had one.
I'll post another review when I try another one.