Can I use just half the biwire?

I’m just thinking off the top of my head and I use Purist shotgun biwire Museus cables but if you only connect it as a single run cable are you using only half of the wires capability? I’m thinking if you have a 12 gauge wire x 2 and you only connect one of them are you using only half of it’s potential? I'm thinking impedance and resistance differences here. Any feedback on this

Rodman, understand your comment and knew it.  I was just trying to say it in layman's terms to give scott a better idea to build from.  Keep the biwires together.  You paid for all that wire.  Use it!