nandric
My ''theory'' was that the spring tension in the VTF adjuster by the FR-64 ''does not care'' at which level the tonearm is in relation to the VTF. So I started with parallel position , the scale on the (SP 10) platter at the level of the ordinary (170g) record. The VTF was exactly 2 g. Then I moved the arm up to about 2-3 mm and measured again the VTF which was as before 2 g. Then I moved the arm to its original (parallel position) and from there for 2-3 mm down . I got again 2 g as result.Those are the results I'd expect when a pickup arm adjusts VTF in that fashion. That's why it's called "dynamic" balancing as opposed to "static" balancing.