FWIW> I too had 20 year old WW Gold Eclipse III full loom interconnect and speaker cables. Got new speakers that were not bi wire able and also needed longer lengths started me off looking for replacements. I ended up with Silversmith Fidelium speaker cables. However on a whim I found a pair of RCA Eclipse 8 on the used market and placed them between my DAC and Pre amp. They bettered my (Best they sold at the time) Gold Eclipse III silver interconnects. So I sold off all my Gold Eclipse and got the Eclipse 8. I don’t know what you are using now and how it compares to to old WW you had but the newest stuff seems to be very good. It bettered my old WW in a good way.
For reference my system is in the $60K MSRP range. I started that Electra 7 thread you are involved with, that cord is on my DDC unit but have not heard it yet because my Pre Amp is at VAC for updates and have not got it back yet.