Ratio of the Wiener filter estimated underdensity to rms scatter over an ensemble of 54 constrained realizations in spheres of increasing radius centered on the potential extremum (solid curve) and on a point at the same distance in the direction toward the Cold Spot (dashed curve). In each case, only the volume within 25,000 km s⁻¹ of the Milky Way is considered. The distance from the bottom of the basin of the repeller to the intersection with the direction to the Cold Spot is indicated by the arrow.