Grounding cable gauge size

I compared the AWG effect in my system with the silver wires of VH Audio and Duelund (SR SX ground). The more subtle worked better.

Ozzi,

By my own ear, I chose:

VH Audio UniCrystal™ 5N OCC SILVER 24AWG, Duelund 1.0 5N Silver, Neotech STDST-24 Silver 24AWG and SR HD.

The copper wires didn't work for me

I made order of components for DIY Ground Boxes. I would like to see comments from experienced users. 

Maybe something is superfluous or missing?

Not sure about using a magnetic mat. Has anyone tested its effect?

…

Oak box 6,6"x8,5"x4,6"

Entreq Slim Tungsten Feets

Viborg BP614R Cu(R) binding post

Silver Wire 4N 10AWG 

Copper Tape OFC 3N 

Copper Foil OFC 3N

Tungsten Foil 3N 

Application Stabilant with Graphene Powder

     Filling Diamagnetics, Piezo- and Pyroelectrics:

83% Schungite

10% Tourmaline

5% Rochelle salt 

3% Clear and Smoky Quartz

    Filling Mix Dia-, Para- and Ferromagnetics:

Copper 5N Cu OFC Granules 

Silver 4N, Copper 5N, Tungsten, Brass, Al, Mg, Fe and Steel Powder