Its really useful for dual tone's, more so for bass in my experience. But say you want to get that grindy bass sound, load up once of the clean guitar amps, stick a TS or Bass OD in front of that and use the EQ to HP to about 500 - 600 Hz, and then create your low end for tone B and Low Pass that to where you feel is appropriate. You could do this using 2 different tracks and EQ after PodFarm, but I just find this way to be a little simpler