Comparison of the positions of the program stars (plotted with error bars) in a Kiel diagram (T_eff, log g) with different evolutionary tracks for hot flashers (Battich et al. 2018) and the hot subdwarfs from the SPY project (Lisker et al. 2005; Hirsch 2009). The hydrogen-rich hot subdwarfs are marked by open squares, while C-rich He-sdOs are are shown as red filled squares and N-rich as green filled hexagons. The dashed (black) track is for a shallow mixing case and a stellar mass of 0.46794 M_⊙, while the full drawn (red) one represent predictions from the deep-mixing hot flasher scenario for a mass of 0.46599 M_⊙. Also shown are the zero-(ZAEHB) and terminal age EHB (TAEHB, adopted from Dorman et al. 1993) and the helium main sequence (Paczyński 1971).