Goldeneraguy,
I am not certain of which iteration of the Vector I have, except that I know it is not the latest. I've been told that the reason to upgrade to the latest is for the better tonearm wiring. I would probably also opt for the VTA adjustment micrometer if I ever upgraded the arm.
I have very carefully set up the arm, although once set, I generally don't fiddle around with adjustments. My Titan cartridge is extremely sensitive to VTA setting, so I did do that carefully. I use homemade spacers cut from 1/2 inch PVC pipe, that fit under the fluid well part of the Vector arm. I prefer this type of spacer to things like a deck of cards because the deck of cars approach is not particularly repeatable (the cards compress too readily). I have spacers that go up in height by about .5mm increments. It is easy to hear that little difference in height at the armpost.
What I find interesting is that adjustments of VTA is sort of interactive with changing other aspects of the system that relate to tonal balance. For instance, if I change cartridge loading, I often find that the ideal VTA setting has changed slightly as well. The same is true when I change tubes in the phonostage. Just think of how crazy you can drive yourself by juggling three variables.
