What are the differences in the Faction, Vapor, and SK mainlines? I'm looking at an SK but don't know how that compares to the other two. My buddy had some stretch in his Faction so I'm trying to avoid the same thing. How are the SK and Vapor different? Thanks!

Nobody?

One is 2000k lb tensile strength, one is 4000k (I think those numbers are right). Then there is a version that is plastic wrapped and one is not I believe. Personally 2k is enough for me (and a lil cheaper) and the ultra-stiff stuff makes my tennis elbow worse. There are a few cwb/proline reps on these boards, send them a PM or just call proline. Good luck.

Eubanks, I just got mine in the mail and I wish I could remember which one I picked. Other than what is stated above, check the overall lenghts and sections (75ft vs 80ft?). I believe the more expensive rope is longer, and has more shortening options than the lesser.