Detection efficiency residual (Δℰ in %) diagrams to test the impact of stellar contamination for the γ Dor sample (left panels) and SPB sample (right panels). The top panels show the results for non-variable targets from AFFOGATO when comparing all stars vs. contaminated stars only. The middle panels show the result for non-variable targets from CORTADO when comparing all stars vs. contaminated stars only. The lower panels show the result considering only contaminated targets and comparing non-variable targets of AFFOGATO vs. variable targets of DOPPIO. Note that the colour scaling of [0, 30] % was chosen in order to make a direct comparison to the Δℰ diagram of CORTADO displayed in the lower panels of Fig. 16.