Pressure profiles of clusters with low and high fractional dispersions in M₅₀₀ derived using hydrostatic equilibrium. The grey lines show the pressure profiles of the 50 clusters having the lowest (left panel) and highest (right panel) fractional dispersions. The thick red lines indicate the corresponding median profiles. The bottom panel displays the ratio of reconstructed to true pressure profiles. In the right panel, we have also plotted the median profile for the lowest dispersion set with a thick blue line for comparison. The insets illustrates the distribution of the relaxation parameter χ for the same clusters.