Quality assessment for the λ6786.8 Fe I line. The style follows that of Figs. B.1–B.3, minus the line profiles, and with several additional line profiles corresponding to the available literature log(g f) values of the transition. In this case none of the literature log(g f) values can accurately reproduce the observed profile, with Δ log(g f) values ranging between 0.1–0.25 dex, thus we would propose our as a more accurate alternative.