Distribution in the ) plane for the RV (upper panels) and the RGB (lower panels) samples, computed using AGAMA for four different potentials. Here we colour-code the distribution by the fraction of stars moving inward (V_R < 0). The black curves mark the expected OLR of the bar at 1.08 L_Z, ⊙ and the Cepheid gap at 1.42 L_Z, ⊙. The diagonal ridges are much clearer in this space than in Fig. 3. We report a previously unseen new overdensity of outward-moving stars just beyond the Cepheid gap. This is marked by black arrows.