Comparison of the normalised Δ RV_max distributions (left panels) and the normalised cumulative Δ RV_max distributions (right panels) in the different regions. From top to bottom: EHB1 (red) and EHB2 (green), EHB3 (yellow) and EHB2 (green), postEHB (blue) and EHB2 (green), bEHB (grey) and EHB2 (green), and bEHB (grey) and EHB1 (red). It ought to be pointed out that the contribution of stars with high RV shifts tends to be visually over-represented in the cumulative distributions and is better visible in the normalised distributions.