Total retention efficiencies, resulting from different combinations of the hydrogen and helium retention efficiencies. In this figure we have assumed M_WD = 1 M_⊙ as an example. The mass transfer rate Ṁ = | Ṁ_comp |. For lower (higher) M_WD the maximum retention efficiency shift to lower (higher) | Ṁ_comp |. For a more detailed explanation of the retention efficiencies see Sect. 3.1.