Comparison of q_IR between our full SFG sample (MS+SB, stars) and the SB subsample (circles), as a function of redshift. To mitigate the incompleteness of an IR-based selection of SBs, we only show bins with M_⋆ > 10^10.5 M_⊙. Black lines highlight best-fit IRRC trends from the literature for comparison. This test suggests that q_IR evolves irrespective of whether a galaxy is on or above the MS.