Hey i was playing with my friend's POD PRO the other day and I really liked the sound of the "grey flanger" effect. I believe that it's modeled after the MXR Flanger, and i can't get the sound out of my head. Is the MXR a decent bass flanger as far as they go? Where can i expect to find one and how much do they cost? Also, will it leave my sound unaffected when it's not in use? Thanks for any input, it's much appreciated. Brian.