best speaker cables for psb stratus golds

Hi there - I used to own golds. My impression was that they were pretty revealing of the electronics behind them. I also owned silvers, which seemed to have a little more energy in the treble region...making the golds a little more laid back. How would you characterize your sound now with the silvers? It might sound a little warmer on the golds. Typically copper cable sounds warmer than silver cable in my experience. Frankly what I bought then and still use today is signal cable ultra biwire. I am not familair with the wireworld product. Hope this helps.