The Hγ and Hβ lines (left and right panels, respectively), as obtained from models (b) and (c) (red solid and green dotted lines, respectively), both with an effective gravity of log g_eff = 2.47. Although the strengh of the line wings is the same, the two models imply masses and gravities, which strongly differ because of the different treatment of the radiative pressure (cf. Table 4).