Ever change interconnects depending on what you listen to ?

I do sometimes. I have two both excellent but very different cables - Purist Audio Neptune fluid and Tchernov Audio Reference MK II. I am talking about analog chain, with digital the Purist is always better. But with analog not always, though in most cases. Another thing that I do is to at times run them both in a chain, that's the Tchernov goes from phono to Nak deck and Purist - from the deck to the integrated amp. Speaker cables are older Purist Colossus fluid. In fact, in many ways this overall gives me the best sound. The integrated has a passive preamp, and deck provides extra gain. Since I make recordings, I know that, again, in most cases the Purist is preferable but not in all cases. This is fun indeed. Perhaps, there can be no one perfect cable for any system for every recording. It is also not always the fewer the wires the better, the fewer components the better.