IMHO, I would go synthetic. Agree with VMG "precourt" very cool stuff. Thats what I'm putting on the C-class but I am going one size up. Again IMHO for SS cables Aircraftspruce has probbally more experiance than most rig shops. And the work there is very good. and at a decent price. not cheap. Doing SS standing rigging in the garage doesn't seem like a good idea. Failure is not worth it not only will you damage the boat you might damage the crew or yourself. regaurdlees of the type of boat.