Beagle, I have an XK-1. Your XK-3 sounds better, especially the Leslie sim.
I wish there was a ROM upgrade available for mine so I could bring it up to date, as Suzuki has made some improvements over the years. However, the guy who's been writing VB3 has been working on those algorithms for 20 years so it's not surprising that he might get closer than some Johnny-come-lately contractors at a company better known for motorcycles.
I run the XK-1 through a Ventilator and a stereo pair of Roland keyboard amplifiers. The Vent gets the distortion exactly right, at least as far as my memory can ascertain from back in the day when I used a real Leslie. Back then, I often wished I could get a clean sound and still get the desired volume, but as soon as you put microphones on a Leslie you've got something entirely different. The Vent/amp combination lets me get loud and stay clean, or (just as handy) get dirty at low volume.
The (almost) ideal live rig would be a module hosting VB3, driven from the Hammond's waterfall keyboard and run through the Ventilator. But I can't afford a Receptor and I wouldn't be happy without physical drawbars. The Crumar Mojo is exactly what I envision: Fatar waterfall keyboard + real drawbars and VB3 running inside. Add the Vent and it's organ heaven. But at $2500 the Crumar's way beyond my means.
At least now I can get that sound on recordings, even if it eludes me on stage.