Upper panel: Change in the mass-loss rates, $\stackrel{·}{M}$, and terminal velocities, v_∞, as a function of different values of the clumping volume filling factor, f_∞. The colors trace f_∞ purple indicates the homogeneous-wind model (f_∞=1.0) and red is most clumped wind tested (f_∞ = 0.2). The final model is represented by the black diamonds. Middle panels: changes in the wind efficiency parameter (η) and T_eff as of function of f_∞. Lower panels: different lines’ spectral morphology changes as a function of different clumping values. The color scheme is the same as the upper panels, with the thick black line indicating the best-fitting model spectrum.