Orbital distributions of angular momentum around the symmetry axis, i.e. L_z, for fixed energy slices corresponding to circular orbits at x = 0.4 (left), x = 1.0 (middle), and x = 1.8 kpc (right). We note the different axes ranges for the panels of each column. In the top row we show the distributions for the true Evans model q80v20 (blue) obtained after fitting a kinematic dataset of 10⁵ stars (see Sect. 4.1) and for a realization of the mock galaxy (red, here containing 4 × 10⁵ stars in total). The effect of adding regularisation to the fit is shown in the bottom panels. Adding regularisation makes the recovered distribution smoother and more similar to the true distribution.