Co-temporal and co-spatial Hα blue-wing images (grayscale), together with overlaid contours (17.1 nm: yellow and 21.1 nm: red), are presented in panel (A). The observations consist of a snapshot of a post X1.9 class flare system from 2011 September 24 (data set C). Panel (B) presents the normalized intensity cross-cuts of the other post-flare loop-leg (solid green line Region 8 in panel (A)) for the associated Hα signal (black curve) along with the respective curves of the 17.1 nm (yellow) and 21.1 nm (red) channels, as is contoured in panel (A). The additional markers in these figures are previously described in Figure 8 for this data set.