Personally I DO NOT believe that bi-wiring can make any difference if someone really wants to improve the sound he should bi-amplifying ; more power=more control or just upgrading the ampflication (single wiring),But I do suspect that the standard stock jumpers provided with the speakers might degrade the sound so replacing them Should at least match quality of speaker cable.Is your BELIEVE based on theory or personal experience?
From my experience, best result is using 2 separate runs for TRUE bi-wiring. Doubled the cost but well worth it to my ear.