Top two panels: Fraction of the specific angular momentum η carried away by winds during WRLOF as a function of orbital period for a 1+1 M_⊙ (top panel) and 2+1 M_⊙ (top-middle panel) binary system, and for different wind velocities (v_wind, as labeled by the different colors). The horizontal long-dashed line represents the value of η in the case of isotropic wind emission (Jeans mode) and the short-dashed line the value of η_crit above which the orbit shrinks as a result of wind mass loss. Bottom two panels: Accretion efficiency onto the companion, $\beta =|{\dot{M}}_{\text{acc},2}/{\dot{M}}_1|$ for the same two systems as in the upper panels, either through wind (β_BHL, dashed lines) or through WRLOF (β_WRLOF, solid lines).