Evolutionary tracks in the (T_eff,log  g)-diagram. The evolution from Roche-lobe detachment until settling on the WD cooling track and beyond is shown for a selection of our models. The colour scale represents the final WD mass. A few cases of vigorous hydrogen shell flashes explain the large (counterclockwise) loops in the diagram. Observed WDs are shown with symbols (stars: sdB+WD, double WDs (grey stars: WDs with poor mass constraints); triangles: pulsating WDs; squares: WD+MS; circles: WD+MSP – see Appendix A for references and data).