Top left: dimensionless pressure profiles scaled by P₅₀₀ and f(M), colour-coded as in the bottom right panel of Fig. 3. The 1σ dispersion in the REXCESS pressure profiles (Arnaud et al. 2010, APP10) considering the full sample and the disturbed susbset are plotted using the same colour-code as in the left panel of Fig. 7. The black solid line is the universal pressure profile from Arnaud et al. (2010). Black boxes show the stacked pressure profile of McDonald et al. (2014, MBV14) and its uncertainty. Top right: scaled pressure values computed at fixed radii as a function of M₅₀₀ of our sample (points) and REXCESS (crosses). The black solid line shows the best power-law fit to the REXCESS sample. To avoid confusion, the REXCESS errors are not plotted. Bottom left and right: same but for the entropy profiles, scaled by K₅₀₀ from Pratt et al. (2010, PAP10). The black solid line shows the theoretical entropy profiles from the gravity-only simulations of Voit et al. (2005).