Computed cluster selection functions for Blanco 1 (top row), Ruprecht 134 (middle row), and Berkeley 72 (bottom row). The left panel in each row shows our adopted Gaia (blue), subsample (orange), and algorithm (HDBSCAN, red) selection functions as a function of magnitude for each cluster, in addition to the multiplicative total selection function (purple). The CMD of each cluster is shown for reference on the right panels. (Adapted from Hunt 2023.)