Comparison of the DD SPY sample to evolutionary tracks. See Fig. 8 for details. SB1 systems (19) are shown as filled circles and SB2 systems (19) as triangles; the SB2 WD 0135−052 is not shown as we were not able to determine masses for it. Filled triangles mark systems that are RV variable, while open ones label SB2 systems that were found by visual inspection of their spectra, but are not considered RV variable (WD 0128−387 and MCT 0136−2010) or where only one spectrum was taken (HS 0237+1034). The parameters of the brighter component were used. The gravity of HE 0225−1912 has been offset by −0.05 dex to improve visibility.