Comparison between the luminosity-weighted ages of a subset of RS τ-models from SSAG and the ones derived by MUFFIT for the same models employing a mixture of 2 SSPs. The dashed black line represents the one-to-one relationship, while the red line is the simple linear regression of the data points. The solid black line illustrates the fit between the ages provided by G05 and the ones provided by MUFFIT using ALHAMBRA data (see Fig. 16b).