Comparison plots of the SED best-fit values of A_V (top) and R_star (bottom) against those reported in the literature. Literature A_V values are compiled from the references listed in Table 4. R_star values are derived from the spectral types reported in the literature, using the temperature conversion of Luhman et al. (2003b) and the 1 Myr evolutionary models of Baraffe et al. (1998) and Chabrier et al. (2000). Squares indicate Class I objects, circles indicate Class II objects, and crosses indicate Class III objects. The dotted lines represent fits that are 0.4, 1 and 2 times that of the literature values.