Mean convergence on the deep narrow cone of RayGal (400 deg² aperture) as a function of redshift, when evaluating the distortion matrix along null geodesics (black) or using the Born approximation in the direction of sources (β, red) or images (θ, blue). The black solid line shows the expected value of the mean convergence when using null geodesics, that is , where the averaged quantities are numerically evaluated. The error bars contain Poisson and supersample variance (Breton & Fleury 2021). The red and black points are consistent with the expectation values for direction and source averaging procedures, respectively. The blue points, which come from a hybrid prescription, seem to lie between the former two.