I'm looking to expand my guitar rig some gear. Mostly a preamp/effects unit such as a Rocktron Prophesy, and a good power amp. I am just worried about changing settings on it. Basically switching from clean to distortion to a lead channel type thing. I guess what i'm trying to ask is, by hooking a MIDI foot controller up to a unit such as this, do you have control over every setting on it to save as a preset on the controller? All of these devices are MIDI capable, so yeah... If someone could elaborate on the basics of this, that would be awesome. thanks.