I've pushed a change to the DetChar summary pages that adds a spectral comparison of the following intermediate data products from calibration:
CAL-DELTAL_EXTERNAL_DQCAL-DELTAL_RESIDUAL_DBL_DQCAL-DELTAL_CTRL_UIM_DBL_DQCAL-DELTAL_CTRL_PUM_DBL_DQCAL-DELTAL_CTRL_TST_DBL_DQAn example is available here with the plot attached below; this should be up on the summary pages within an hour.