Rather than (indistinguishable?) 0 and -0, why not add back some magnitude in the positive direction? { -1, 0, 1, 2 } is most obvious, but it's not clear w

Rather than (indistinguishable?) 0 and -0, why not add back some magnitude in the positive direction? { -1, 0, 1, 2 } is most obvious, but it's not clear whether it's better or worse than { -1, 0, 1/2, 1 } Maybe theoretically (if not architecturally) it would best to "split the difference" between the two and choose { -1, 0, 1/phi, phi } or perhaps the more implementable { -1, 0, 1, 3 } EDIT: Of course you can also go the other way, with { -1, 1 }