Correlation between the peak of the velocity profiles |V_peak| of all simulations versus various quantities: the relaxation time t_rh at a given snapshot; the number of relaxation times n_rel; the total mass M; the mass loss ∆M/M; the tidal filling factor r_50%/r_t; and the cumulative tidal strength experienced by a cluster (defined in Sect. 3.4). Orange crosses indicate the initial conditions, blue circles the snapshots at 12 Gyr, and the gray lines the evolutionary tracks. We highlight in black the track corresponding to the simulation 1.5M-A-R4-10. For each panel we performed a Pearson and a Spearman correlation test for the data points at 12 Gyr, and we indicate the corresponding coefficients (r_p and r_s), and plot the corresponding linear fit (dotted blue line) for the panel showing the strongest correlation, |V_peak| vs. M.