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Hi there,
The very helpful rep that I spoke with at Nico said that, while their terminals will break the wire in 6x and 7x constructions, they were less efficient in 1x19. The problem, as he put it, was that the yarns behave like the threads on a screw, so the terminals can slip. For this reason, you should never use Nicopress fittings as end-stops, as they don't hold at all well in that application.
I did not ask the rep about efficiency per se; that is, while the terminal might break the wire in a test, rather than slipping, I don't know if it weakens the wire, or by how much. Cable clamps, for instance, won't slip, when properly done, but weaken the wire by 20% or so. I am hoping that the rep might sign in here, to elucidate/correct all this.
Finally, 1x19 is reluctant to go around thimbles, and thimbles that are big enough in radius -- and which won't collapse under extreme loads -- can be too big to fit into yacht turnbuckles.
Fair leads,
Brion Toss
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