Comparing V/σ_e values (denoting those measured at 1 R_eff) from the ATLAS^3D survey to isophotal axial ratios measured at R_25.5 for galaxies matching between the S⁴G+ETG and ATLAS^3D samples. Orange points denote elliptical galaxies, while black points denote S0s. The red dashed line shows a linear fit to all points. Points circled in red are edge-on disks (denoted “spindle” by Buta et al. 2015), with unreliable axial ratios.