Mass-velocity correlation for the three BH kick variations discussed in Sect. 6.2. The brighter colors indicate where the probability per system is higher on this plane, the colors have a logarithmic scale. Left panel: our fiducial distribution, central panel: case for intermediate BH kicks (σ_kick = 100 km s⁻¹ and no fallback), and right panel: large BH kicks (same as for NSs). The NS kick is effectively the same in all panels, since the amount of fallback is very small for SNe producing a NS.