Hi Steven ,I would love to listen to the gzero6 . I know what you are saying re silver .It spotlights the upper mids ,lower highs which causes an imbalance ,like a lack of warmth . I think this can be corrected somewhat with careful choice of diameters .
Silver and plastics don't seem to be the ideal partners either .
I am still refining some aspects to my cables ,but have had some personal setbacks which have slowed progress .
Spare "my" time at the moment is devoted to tuning my CD94 mk2 ,and Stax CAX pro ,so that I can enjoy listening after a 6 year hiatus due to a couple of little boys that needed attention .
by the way ,I have owned pure gold cable and it is actually in the opposite tonality to silver ,with copper being in the middle .Gold has awesome bass ,is extremely warm ,and possibly a little polite on top .combination of gold and silver would be wonderful but gold wire is extremely expensive , difficult to work with,and breaks easily.Platinum has incredible detail but lacks warmth of copper .Palladium sits between silver and platinum .I would like to play more with a platinum copper combo one day to see if it could be balanced .Bear in mind that diameters will change the tonality .I just believe silver can be tamed,or at least the gap can be closed a lot and still hear the benefits of silver .
Other components have imbalances from neutral like capacitors and resistors .To use an analogy silver is like a Cerafine cap ,and copper is like a Silmic .Its how we use them that can make or break the sound .Personally I think the Starget is more neutral than either of the ,but that's off the track .
Using annealed silver is critical .hard silver is just bright and irritating .