Assuming WireWorld has continued to refine their decades old goal of maximum possible neutrality, if their cables do not work out in a system, a logical conclusion would be that the problem is something other than the wire. Rather than an expensive bandaid ("warmer", in other words, distortion generation that appear as "warmth"), fix the problem elsewhere in the system.
In many cases, the problem is the speaker. No surprise as most buy speakers based on reviews and good deals, not an audition in their home with their equipment. Now begin the endless cycle of upstream gear changes and tweaks to try and change the basic character of the speaker, again euphonic distortion generating bandaids. Of course, assuming the listening and speaker positions have been dialed in exactly; another unlikely event for most system owners. Without this hopeless cycle, most audio dealerships would close.
To those who claim that silver coated copper (or tin for that matter like the very well regarded Duelund wire) can't possibly sound good, I very much doubt they have actually auditioned the Wireworld Sliver Eclipse 8 products in their system.
Why do most dealers carry many cable lines if one brand is the most neutral? My guess; easy money. An honest dealer would only sell the most neutral and if there is an issue, help their customer identify what is wrong elsewhere in their system. Good luck finding one.
I'm not interesting in debating this. Just my opinion, take it or leave it.