Illustration of the bootstrapping and resampling process. The procedure is shown for the well-behaved cluster NGC 2422 (top row), and the more scattered beta Sco group (bottom row). The orange lines in the left column of the figure indicate 100 resampled SVR isochrones created via bootstrapping of the PCA cluster data. The center column depicts the same lines projected into the respective cluster CMD. The right column shows the median (red line), 5^th and 95^th percentile boundaries (black lines) calculated from the resampled set.