Time evolution of the equipartition mass, m_eq, in the underfilling SCs (top row – calculated from the 3D velocity dispersion; middle row – calculated only from its radial component; bottom row – calculated only from its tangential component). The regions that evolve towards EEP (to lower positive values of m_eq) are in shades of blue and purple, and the regions that evolve away from EEP (to negative m_eq, i.e. away from EEP) are in shades of red; see the colour bars. To give a sense of the radial scale and dynamical evolution of the SCs in each plot, we also show the 1% L.r., half-mass radius, 99% L.r., and the tidal radius (from bottom to top; black lines). If the fit is poorly defined due to an insufficient number of data points in a radius–mass bin, we mask the corresponding pixel with grey. We note that because of the log-scale on the vertical axis, the bins below 2% may appear more prominent than the other bins despite covering a smaller radial range.