(dons Helmet, kevlar vest and cup.) Biwiring Cornwall IVs any benefit?

Bi-wire is a maybe at best, but getting jumpers and getting that piece of cheap steal out of the circuit can make a huge difference! I have tried bi-wiring my KEF’s a couple of times and the best I can say is maybe I heard a difference. I bought a decent pair of jumpers and they made an immediate difference in the brightness and Dynamic presentation.

YRMV.

groovy and thats probably cheaper too !

   My experience applies only to my set up, so grain of salt, etc.. My Paradigms absolutely benefited from bi-wiring. Maybe it's the connector the speakers come with between the binding posts, but bi-wiring makes a positive and very audible improvement on my speakers. Decent quality jumpers also improved my sound, but not as much as bi-wiring.

 Anyone who says "never" is speaking outside their experience and/or would likely be content with coat hangers for speaker wire. They're usually the ones who think if two wires deliver the requisite voltage, they must be identical.

I have good jumpers in now and they helped. I have another set of speaker cables I can try too..it's free so why not. Did you use the A and B speaker channels?