I can confirm that fluid in PAD cables makes a difference. I had Maximus interconnect that was 2/3 empty, sent it to Purist, got it back refilled, and now it sounds better. They cleaned the connectors too, and possibly did something else as well - I don't know.
Purist cables are great, just need some care every ten years or so.
Purist cables are great, just need some care every ten years or so.