Re: Mainsheet Salsa
The best halyard is probably endurabraid. Which is a dyneema core with a poly cover.
If you do your own splicing, I make my own. Start with a amsteel core, and splice on a few feet of cover either from a stripped line, or you can buy the cover seperate. All the strength of amsteel, the hand of thicker line, and a fraction the cost of endurabraid.