Comparison between dust disc radii estimated with the cumulative flux technique (c.f.t.) applied on the data by Manara et al. (2019) and with those estimated by Manara et al. (2019) with Galario-modelling (R_c.f.t/R_Galario). Left: Dust radii estimated as the radii including the 68% of the total flux (i.e. effective disc radii). Right: Dust radii estimated as the radii including the 95% of the total flux. Red circles are used for circumprimary discs, blue square for circumsecondary discs.