Oh, I have researched this very thing. So....
*Midi control via standard midi cable, In only
*Hot Hand controls only the amount of drive
*Hot hand and expression pedal can be used at the same time
*Expression pedal morphs between presets only
*(edit) Oops, the eq
*Midi control, after midi adapter is released. But will have Midi in/out and can daisy chain midi data using the SA daisy chain cable between other SB2 pedals
*Hot hand can be assigned to any cingular control knob, default is to morph presets
*Future compatibility with SB2 pedals
*Expression pedal compatible only with SA dual expression pedal
I have a Pro version mainly because I control my fx with midi and without the midi adapter available at this time, I really didn't have a choice. But the expanded control of the hot hand on the SB2 make it very attractive. I think it mainly comes down to if you want the 6 presets and have plenty of room for it in your setup or if you are into the Hot Hand. I imagine it won't be long after the midi adapter comes out before I move to the SB2 MWBD.
BUT - Check out the Classic Distortion Pro if you are interested in more traditional fuzz/distortions
Last edited by Gadgetjunky : 11-21-2012 at 10:13 PM.