Back in Seattle I found a great running line on a clearance table at the Clearwater Angler in Auburn WA (now defunct). It's an S/A Mastery series running line for saltwater, intermediate with a sort of sand color. It is indestructible and has a slight texture that is easy to grip. I bought it for short money and it served me very well as a shooting line for heads in Puget Sound and the Straits for coho and king salmon.
I still have it somewhere but since I don't like loops for stripers because I strip right up to the leader butt often and hate the mung magnets on my line so eventually eliminated all loops from my northeast line setups and would have to dig it up from it's hiding place - but in the case of rigging lc-13 or a head I would recommend this running line. I'll go take a peek at the S/A site and see if I can figure out which one it is. Also they may have discontinued it as I don't believe they sold a lot of it.