Unfortunately the pick-up on a V-bass system has to be positioned quite precisely, or it won't track properly; the string height has to be dead on as well. Having demoed the unit a few times for customers I've come to the conclusion that on many custom basses, the V-bass pick-up just won't fit, unless you butcher your bass by moving the bridge pick-up closer to the middle. My 2 cents on V-bass unit: if you love synth bass and also enjoy a good upright simulator & don't mind spending about 1000$ for the V-bass & pick-up ( outside of any installation charges you may or may not incur into), go for it. Otherwise you can get all the same fx (except the simulation features) out of the Gt-6B for about 400$ . Besides, remember, the V-bass will NOT allow you to use your bass as MIDI controller ( as many of my customers thought).
My verdict: interesting tech, but still needs work and needs to be cheaper. For Alembic owners: best bet is to have it installed as your bass is being built. For existing basses, I can see easy install on the single pick-up Excel basses, more complicated installs on other 2 pick-up models
Valentino