Do the Tokyo series Sadowsky's all come without the VTC? If one comes without it, is adding a VTC something I could have done? I do live about 3 hours from Roger's shop.
Adding the VTC is a pretty simple and straightforward process. The Sadowsky shop even sells the kit to add it on.
The VTC is a pretty simple device. The Sadowsky tone circuit places the volume and pan in front of the preamp. That is, pickups -> pan -> volume -> preamp (with bass?treble) -> output.
The VTC is a passive tone. It serves as a preamp bypass (active/passive) switch) via a push-pull and a tone knob in passive mode. It's not really any different than a tone knob on any passive bass.
That doesn't negate it's brilliance in any way though. It is good to have if you ever use passive mode, but IMO, the beauty of it is how the passive tone and the active treble boost interact. You can boost the active highs to get a really bright, articulate sound and - at the same time - use the passive tone to polish the shrill, harsh top off that bright tone. I am not explaining perfectly, but it is a very cool thing. One of my favorite things about the Sadowsky magic.

