An example set of PDFs to compare the case of all-Gaussian PDFs of Section 5.2 vs. the case presented in Section 5.3 where half of the galaxies have bimodal PDFs. The left panel shows the observed photo-z PDFs for the case of all-Gaussian PDFs, while the right panel shows them for the case where half of the galaxies have bimodal PDFs. The colors correspond to the same objects across the panels.