Dear chakster, Dover explained the issue of ''damping'' in more
technical and convincing way than Raul. The spring in the FR-64
which function as VTF adjuster as well as dynamic balance is loaded
with grease providing this way also damping. Dertonarm who is
an expert for all FR products advised me to use ''spring adjustment''
for 1,25 g and (manual) counterweight adjustment for the rest.
He swear by FR-66 and FR-7 MC kinds. I deed try them all
and ''swear'' by FR-7 fz. Unbelievable for such an ''old cart''.
''second to non in some sense''.