  Heavy charged bosons, with masses in the range of a few TeV, are a
characteristic of warped extra-dimensional models with bulk gauge fields.
Rendering the latter consistent with electroweak precision tests typically
requires either a deformation of the metric or extension of the gauge symmetry.
We make here the first attempt at finding empirical discriminants which would
tell these models apart. Demonstrating the power of simple kinematic
observables involving same-sign leptons, we construct simple yet powerful
statistical discriminants.
