Follow up question (16-4 Gauge Speaker Wire)

What is your opinion on running the 16-4 Gauge Speaker Wire UL CL2 CL3 Cable on a surround-sound system with 30 foot runs? The wire contains 2 - pair of 16 Guage, so should I consider combining each pair to make 8 Guage?

As I stated in a previous post, I have a Sony 555ES 5.1 receiver, 4 Bozak speakers (12"-woofer, 6"-midrange and two 3"-tweeters in each cabinet), and a Velodyne powered sub.

Any help appreciated!