fd178d24_n_and_How_Should_They_Be_Used___Strengths
[Line] Single-strand Monel wire [Weaknesses] Can only be connected by a haywire twist [Strengths] 
More pliable and less prone to kinking than stainless. Better corrosion resistance than stainless wire.
Fishing Leaders - Just Why, When and How Should They Be Used?
Strengths