Chris,

You dang-blasted nincompoop!!



(haha - he said poop)

Nah, but seriously, folks.....

If you've got the wire why not? It ends up as a larger gauge than one run, really, and I think that's good. I can't see how it could hurt.

You also get a larger contact area between the wire and the components on both ends. Again, seems good, and how could it hurt.

I use a and b outputs for my mains, not because of biwiring but simply 'cause my 10ga wire woudn't fit into a single set of banana plugs, so I split it into two.

Good luck, enjoy the experiment!

Pete