I wouldn't lose the hardware, but I voted do both at once.

I think it makes it easier to just know that both cleats are new and when. I'd save the half way good one though in case you needed it for something. I'm a pack-rat.

I bought a pair of Look Keo pedals/cleats, but haven't started riding them yet with the snow. They are still in the box with the original cleats. They are my first pair of Looks...

Is the Keo "wear indicator" that raised oval piece in the center of the cleat?