Hey Rob, I used to have 3 WW PCs, one WW series 7 XLR, and series 7 speaker cables. A fellow ’phile told me about these (see link), bought one then quickly the second; one between wall and PLC the other on my power amp. Cheap enough to try and can be returned.
Prior to these, from another forum blog I went to, I spent hours on Ali-Express looking at cables (stupid cheap prices and free returns). I dipped my toe in the water and bought a Nordost Odin 2 Coax knock-off < $100 to replace a Pangea Coax Premier XL ($169) between my Audio Alchemy DDP-1 + PS 5 and it blew me away, this led to slowly replacing all my cables with Odin 2s knock-offs, including all but the one PC between wall and CorePower 1800 PLC, so I bought one (link below), then quickly a second one for my LSA Voyager 350 GaN amp
After break in I treated all connections with Mad Scientist Audio Graphene Contact Enhancer to amazing sonic benefits
hth