Comparison between the contour bin and manually defined region spectral fits. The contours show the density of the fit values from the contour bins, weighted by the area overlap with the respective manual region. In (a)-(c) we show examples using the simple TBABS × NEI model. The green contours and red markers show the best-fit values with uncertainties of the contour bins. The fit result from the manually defined region is shown with a blue marker. In (d)-(f) we show the TBABS × VAPEC₁ +APEC₂ model, where the green contours and black markers show the low temperature APEC, and the blue contours and red markers the hotter VAPEC component best-fit values. The fit results from the manually defined region are shown with a blue and black marker.