Top panel: histogram of the difference between the kinematical and morphological PA, where the red part of the histogram represent galaxies for which the kinematical PA has been fixed to the morphological one. The X-axis in the last three panels represents the difference between the kinematical and morphological PA, as a function of: (top middle panel) the number of bins per velocity field, (bottom middle panel) the difference between the kinematical and morphological inclination and (bottom panel) the kinematical inclination. The conventions of color, symbol and marker size are as in Fig. 3.