@charles1dad Never occurred to me silver PC would be a voicing I'd seek, YMMV per usual. For me, keeping silver and copper in good balance has been key, spot on for the last few years.
One adjustment made with pc's in just the past couple months. We both run BPT PC, @williewonka made me aware balanced PC should have balanced power cables as well, balanced in the sense of having exact same conductor on neutral and hot. Recently changed my Helix Image (williewonka design) from asymmetrical hot and neutral to symmetrical, in my case going to VH Audio Airlock on both hot and neutral. This change on both pc to dac and Statement, extremely nice improvement, higher level of transparency vs prior.
Point is, for those of us using balanced isolation transformer based pc, make sure power cables have exact same hot and neutral conductors.