Interesting point. I will be able to answer part of that question when I get my Graham arm back from Bob, hopefully in the next couple of weeks. The ViV is really an oil damped unipivot without the twist. It also is designed on the principal that traditional headshell offset angle and overhang design cause more distortion than tracking angle errors. I recognise that this goes against received wisdom but it does seem to work. I have now lived with this arm for about 8 months so know it well. My only comment is that the set up template is flimsy and I would make a perspex gauge. Also VTA is a pita and a set of C shims would help
