L/ L _Edd vs. M _BH for type-II sources (red points) and for two assumptions about type-I sources: simple virial assumption (black points) and modified estimates (Equation (3)) that include radiation pressure force term with a _rad = 6.5 (blue points). Note the reduced ranges in M _BH and L/ L _Edd and the very different distribution compared with type-II sources, when the modified estimate is used.