Distributions of the geometry scaling parameter l (left) and its variance χ² (right) shown with Bayesian (solid lines) and uniform binning (dashed lines) for FSRQs (red) BL Lacs (bue), and RGs (green). Upper four panels: distributions for the entire jet at both frequencies; Lower four panels: distributions for the overlap-region at both frequencies. Bin sizes were chosen as 0.2 for the l distributions and 1.0 for the variance distributions.