Extension of Figure 3; see Section A.5 for further discussion. Probability distributions of the image-position anomaly A for GRF-based FDM realizations constructed using the selected S–P density field with m_ψ = 10⁻²² eV. The blue and red histograms show the normalized distributions for radio1 and radio2, respectively, while the solid curves denote the corresponding KDE fits. The blue and red vertical dashed lines indicate the position anomalies predicted by the best-fitting smooth NFW model for radio1 and radio2, respectively.