Histogram of SALT2 SN Ia fit quality (chi² per degree of freedom) for the complete 10 + 59 channel. Blue bars show the full sample (with enough detections for fit) while orange shows the subset which also fulfill the expected fit parameter requirements. These are compared with the fit quality for the subset of known SN Ia in the comparison sample (outlined bars, scaled with a factor 2) as well as a standard χ² distribution for one degree of freedom (scaled to match the first bin of the restricted sample).