Impact velocities (y-axis) versus the collision angle (x-axis) for a sample of our runs in MI (solid red triangles) and MII (solid blue squares). The two horizontal lines show the mean values at 1.98 v_esc and 2.52 v_esc in the respective models. The vertical lines divide the impact angles into three equal intervals; we note that whereas the impacts in model MI are rare between 60 and 90 degrees, the impacts in MII are almost equally distributed.