QED Sub-woofer Cables - QONTOUR MP-SW

I was thinking about upgrading my sub cables to the QED QONTOUR MP-SW. Has anyone used them? Any thoughts?

I have QED Silver Spiral Interconnects and was thinking of getting the QONTOUR MP-SW sub cables, then the Genesis Speaker cables later.

I have an Arcam FMJ A32 amp, Totem Acoustic Hawks and the Totem Lightning sub.