Measured velocities of all components plotted against their corresponding angles θ_i,m away from the apex of the best-fitting velocity vector for Components 1. Large symbols indicate components that are dominant in their line of sight in terms of column density. Medium-size symbols depict cases where two secondary components in a line of sight have identical column densities within their error bars. The smallest symbols indicate components that are clearly secondary. The adopted reference column densities are those of Fe II, when available, and Mg II otherwise. Note that nearly all the largest symbols are aligned with a curve that we can identify with the overall trend V_mcos θ_i,m of Components 1, where V_m = 25.53 km s^-1.