Unfortunately Mr. Wombat... that is a pretty good description of how swaged fittings fail. And generally, they fail at the lower ones, rather than the upper ones, since the lower ones are exposed to far more salt water and tend to trap the water, as they face up—like a tiny little cup.
This is enough of a problem that one of my friends, who is a rigger, often suggests to his customers that they should get the top of the stays and shrouds swaged, but that the lower ends should be mechanically fastened, using something like a Sta-Lok or HiMod fitting.
Another option is to coat or soak the lower swages in oil, wax, etc, to prevent the water from seeping into the wire and swage fitting itself. This can prolong the life of lower swages dramatically, at least according to my friend. I've not tried it—but he's been making rigs almost as long as I've been around...so I tend to believe him.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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Still—DON'T READ THAT POST AGAIN.