Histograms for the inferred core masses of the three sets of 100 perturbed period spacing patterns for the LC_SAP, LC_PDC and LC_Pápics light curves. The top and bottom panels show the distribution for the five- and six-parameter setups. Two forms of the inferred core mass are provided, one defined as the mass within the region that satisfies the Ledoux criterion, and the second which additionally includes the mass within the core-boundary mixing (CBM) region as well.