Comparison of vs. obtained from ESO-FEROS archive spectra and with from Boro Saikia et al. (2018). Stars with obtained from GSP-Phot input and placed in the HA-branch are plotted in blue, those in the VHA-branch in red, and those in the LA-branch in orange. Stars with obtained from GSP-Spec input are plotted in grey. The linear fit to data with GSP-Phot input is plotted in green (Eq. (8)). The comparison with from Boro Saikia et al. (2018) is shown with open purple squares, and the corresponding linear fit with a purple line (Eq. (9)).