Have a few questions for anyone who may have used an SE-70, or VF1, with an expression pedal or midi switcher. Can a variable expression pedal be used with the SE-70 (or the new version, VF1)? The idea would be to use a Leslie (rotating) speaker effect, and use the expression pedal to vary the speed. Also, can a midi switcher be used to select effects presets via the midi port? Im thinking about a Tech 21 Midi Mouse for doing this. Any ideas?