Canare 4S11 two strands vs four strands

Hi, I'm going to run about 160' of speaker wire to a pair of outside speakers. I'm thinking about using Canare 4S11 which has four strands in a cable. If I understand it correctly, two strands are the equivalent of 14 gauge and 4 strands are the equivalent of 11 gauge. So if I want 14 gauge per speaker I could use one cable, but if I want 11 gauge per speaker I would need two cables.

Questions:
1. Has anyone at shorter/normal distances (say up to 30 feet or so) listened to 2 strands per speaker vs. 4 strands per speaker? Can you hear any difference?
2. Does anyone think that given the relatively long distance of 160 feet from amplifier to speakers that using 4 strands (effectively using 11 gauge vs 14 gauge) would make a sonic improvement? Would it be in gain, or some other sonic attribute? And how much of an improvement would it be (barely noticeable, clearly detectable but only in a A-B comparison, or something you'd notice instantly)?

If I could get by with 2 strands per speaker, the price for the cable (along with the conduit installation) would be less/about half since I'd only have to run one cable out to the speaker location. For what it's worth, Crutchfield shows a chart that says they recommend 14 gauge speaker wire from 80 to 200 feet, and they recommend 12 gauge for distances greater than 200 feet; according to their chart I could use 14 gauge (2 strands) per speaker - but I don't want to have to redo this, so if I need to run two Canare 4S11 cables and use four wires (two per terminal) per speaker, it's doable.

Also, one other question: if you use one cable with 4 strands per speaker and two strands per terminal, does it matter which color strands you mate together into pairs?

Thanks for sharing any experience or advice.

Hi_hifi