Comparison between the BH masses computed from the SED fitting procedure with KERRBB (blue) and the SE (orange) and RM estimates (red, inferred with σ_line and a geometrical factor f_BLR = 2.8 − 5.5, Graham et al. 2011top panel and Onken et al. 2004bottom panel). The average uncertainty for all the measurements is ∼0.5 dex (the results related to each source are plotted in the same order as listed in the Tables of Appendix A).