As in Fig. 10, but for the standard deviation of |ϕ| in each of the galaxies. The lines indicate the running median per T-type for barred and non-barred galaxies, and the vertical lines correspond to the standard deviation of the mean. The horizontal orange dotted line traces the mean σ_|ϕ| (≈9.5°). Mean residual differences with respect to this value for each T bin (typically ≲2°) are shown in the inner panel on the upper left corner.