Left: normalized pressure profiles extracted from the MUSIC simulation for all the clusters located at a redshift z = 0.54 (red lines). The mean pressure profile is represented in black and the intrinsic scatter of the distribution at 1σ is given by the blue region. Right: comparison of the mean normalized pressure profiles estimated from the MUSIC profiles extracted at z = 0.54 (green), and at z = 0.82 (blue). The difference between the two profiles divided by the mean of their associated uncertainties is shown in red in the lower panel.