Advantest R6581T 8.5 digit multimeter and A01006 Kelvin clips

[Kiriakos GR]

I have just started exploring a new rabbit hole.
Advantest R6581T 8.5 digit multimeter, this has something in common with FLUKE 8846A, and this is it 10 Ohms lower resistance range.

Advantest documentation for these products, this possibly was available and only in printed form.
In my question of which model of Advantest magical Kelvin clips, this company selected so to pair with their multimeter?
There is no answer .... 

From Advantest R6555 an 5 1/2 DMM (user manual), it popup the information of Advantest A01006 Kelvin clips.
I did spot low resolution images at Yahoo Japan, of these A01006 Kelvin clips ( old sales listing).

Long story in short:
Kelvin clips alone, they are similar to HIOKI gold plated clips.
4W Ohms wires they are all four shielded at 80% of their length.
Banana plugs they appear Nickel plated  

While Advantest R6581T terminal block ( inputs ), they appear to be made of copper alloy with out Gold plating. 
 
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Advantest A01001 , this is another harness for 2W resistance measurements.
Schematic attached bellow.

This is an unusual design, coaxial shielding this is only for the positive test lead.
Even so by careful study of cable structure, its obvious that the Japanese they use an special technique.
Coaxial cable shielding this is interrupted, after some length, then regular wire this goes to Minus (ground), then this returns back to be connected again at the coaxial line.

I will speculate, that electronic engineering thoughts, was about having a shield, but this not forming a capacitor.
This no behaving as a regular RF cable.
And I have and a few more thoughts about it, that I will keep for my self alone.   

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I thought that by exploring Advantest R6581T accessories, for 2W and 4W resistance measurements, that I might discover cable structure design and secrets, that they are special.

I feel somewhat disappointed now, Advantest engineers never made any worth mentioning research for wire harness.
 
 
8.5 digit multimeter + 10 Ohms lower resistance range +  Low end and basic design of Kelvin wires and clips.
Really ?  Is this the best pack of solutions that the Japanese engineering had to offer? 

Advantest R6581T this is a dead horse with a high count of digits, possibly Advantest engineers they also think of it that way.
This been an high digits voltmeter for automated industrial test system, for production line only.

While western based romantics,  they wrongly appreciate it as Metrology class equipment.
Metrology class equipment they do not come with piss poor accessories. 

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Documentation Year of 2005, this mention Advantest Singapore Pte.LTD as Sales and support Division.
It might not be the Japanese responsible after all.