Discuss The Viv Lab Rigid Arm

It's good to know you've read all my many posts in which I mentioned that underhung tonearms generate a skating force, except at the null point where.... there is zero skating force, in contradistinction to conventional overhung tonearms which generate a skating force even at their two null points, owing to the headshell offset angle. 

As for the rest of your post, what I find so far with each of 3 cartridges that I have extensively audition on conventional tonearms, is that the Viv sounds excellent in every respect and even has some uniquely appealing qualities that I would say add to the sense of verisimilitude with recorded music on LPs.  And that's what we are after, TAE notwithstanding.

Bravo to Lewm for actually buying the Viv Lab arm and then trying it out with 3 carts…and then explaining what he did and what he heard.
 
I have had the Viv Labs arm for a few years now (HA9 as well) and have followed this thread with the chagrin and shaking of the head reserved for all too many Audiogon threads….So I am glad to see these posts reporting direct experience (for the nth time) of this arm that has been, mocked, ridiculed and rejected—by those who have never used or heard it because they “know” better.

In order for the arm to work with the GP Monaco, my Viv Lab arm sits on a Sierra Sound arm pod (NAB-1 Tonearm Platform). Both the tt and the Viv Lab/pod are on a Stacore platform.

The NAB-1 provides the necessary height for the arm, but also and crucially, the NAB-1 is raised and lowered via threaded spikes, using a 3mm hex wrench to make tiny adjustments in overall arm height and to exactly level the arm.

Without this pod, moving the arm up or down requires loosening a set screw to raise and lower the entire upper half of the arm, which often results in gross movement rather than precision.

Leveling the arm is also crucial to its performance, which the SS pod also makes a snap.

Of course, if you don't need the additional height or pod, you will have to find another way of precisely raising and lowering the arm. The deck of cards method recommended in the Audio Beatnik review works, but rather clumsily.
 
NB: Mike at Sierra Sounds assures me that a new batch of NAB-1 pods will be available later this year.

Correction: the NAB-1 is currently in stock at Sierra Sound.

What I was commenting on is the lower limit of the necessary distance between the base of the Viv and the stylus tip, if one wants to level the arm wand, which is 45mm. I neglected to mention that if the base of the arm is situated so that the distance needs to be greater than 45mm, then the upper part of the arm which carries the pivot and etc, can be raised an additional 10-20mm and fixed in place with a set screw. Thanks for pointing that out.

The point I most wanted to get across is that, if you take as gospel the emphatic declarations that this tonearm and others like it cannot possibly work because of excessive TAE or whatever else, then the result of my listening tests should have been disastrous, on the negative side. This is decidedly not the case. In fact, I find myself listening to the Viv/ZYX most of the time, even though I have five other tonearm/cartridge combinations at my disposal at any time.