Structural parameters, w vs. P₃, for the distributions of the disturbed (red), intermediate (green), and relaxed (blue) clusters. Solid circles are the clusters that also belong to FLS1 above a flux limit of 10^-11 erg s^-1 cm^-2. For the clusters whose r₅₀₀ is not covered by the XMM-Newton observations, the measured values are lower limits, as indicated by upward arrows. The three morphological classifications are based on the three dashed lines.