You'll find many different opinions on bi-wire, but I do believe it is best to do a true bi-wire, this is what Vandersteen recommends, which is 2 separate runs of identical cable. IMHO, I would agree with Stereo5 and use Audience Au24 jumpers to replace the brass ones. I tried bi-wire with different speakers and different cables, and it always seem to lose coherence compared to single wire with matching jumpers. This article seems to explain why,
http://www.sonicdesign.se/biwire.html