Summed scores (‘dwarf’ = 1, ‘unsure dwarf’ = 0.5, ‘not dwarf’ = 0) for the three classifiers in each of the four groups of classifiers. The groups were arranged to avoid combinations of classifiers that were consistently more conservative (or more liberal) in the reference tile. Some differences still remain between the groups, but these are not severe for the more confident dwarf candidates, and this may reflect a degree of cosmic variance between regions on the sky.