I think the whole question of bi-wiring really comes down to the individual speakers. Also, some companies' bi-wires are their regular wires split near the end while other companies actually sell two complete wires (sometimes they're called "double runs") soldered to one spade. It seems to work for some people in some situations while other's have said it's a waste of time. Another thing you might consider are jumpers. Some people have had luck with them.