the SC-15 is an amazing tarpon hook. very sticky.
as for longevity, I have found that rubber legs don't last more that a couple of years befor they dry up and break off. I find that a fly falls apart befor it rusts. maybe if I was a better tyer.
I think that Lefty Kreh had written that he didn't like the thin wire hooks for bones because they tore out too easily (soft mouths). An interesting thought.
One cast can change your day...maybe your life.