ST asks if you can use a loop knot so you can just connect a snap to one end.

It is the key question IMO for lures that don't spin (spoons and spinners).....crankbaits being the obvious example where just a snap would be the preferred presentation coming off the lure as opposed to swivel/snap combo which just adds additional hardware with no benefit.

My preference is a high quality snap at one end and a premium ball bearing swivel at the other. Why ball bearing? Who knows.......I just gravitate toward the good stuff thinking in the long run it will save me some grief......fishing has enough hassles without tangles in your line caused by some cheap swivel :P.

And my choice for securing the wire to a snap would definitely be a loop knot. If you scroll down (left) to the short video presentation the demonstrator suggests the perfection loop knot but also acknowledges other knots that do work.

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I have used the perfection loop for many years and like the knot in certain situations and find it unrivaled as far as loop knots go. (it also performs excellently with Florocarbon).

I have yet to acquire some of the wire so I cannot speak with any authority as to connections. I tend to pull pretty hard when testing stuff....(you will be testing your leaders, won't you?)....I will be curious to give the wire a shot. I am particularly eager to use the wire with jigging spoon applications as the flexibility of the wire seems very suitable for that usage.

For lures that do spin (like spoons) I highly suggest ball bearing swivels at each end. Ball bearing with incorporated snap at the lure end and ball bearing barrel at the other end.