From a previous Stringreen post, I understand that VPI has developed a new counter weight that has an integrated fine VTF adjustment and some other features that makes the 3D arm set up a breeze.
As for the Classic series arms, don't forget that there is a fine VTF adjustment that is accessed by an allen key adjustment at the stub of the tonearm.
As for the Classic series arms, don't forget that there is a fine VTF adjustment that is accessed by an allen key adjustment at the stub of the tonearm.