Hydrostatic mass radial profiles obtained from the forward method and the mass models applied to the backward method and described in Sect. 3.1. Vertical lines indicate: (dotted) R₁₀₀₀, R₅₀₀, and R₂₀₀; (dashed) third radial bin (a minimum number of three independent bins are needed to constrain a mass model with two free parameters) and upper limit in measurements of the spectroscopic temperature; (dot-dashed) radial range covered from SZ pressure profile after the exclusion of the three inner points and used in the reconstruction of the mass profile. Bottom panels: ratios of the different mass profiles to the NFW profile adopted as reference model.