Ratio of correlation functions measured for a uniform depth survey, ξ_±, and a KiDS-like variable depth survey, , cross-correlating five tomographic bins (as denoted in the upper left corner of each panel). The upper left triangle depicts the ratios of ξ₊, whereas the lower right triangle depicts the ratios of ξ₋. Results from mock KiDS-like data (red) can be compared to analytic models from Sect. 2 (average redshift weighting, green), and the semi-analytic model from Sect. 3 (blue solid). Mock data is limited to the angular regime which is not significantly impacted by resolution effects. As the mocks only take galaxies with z <  2 into account, they slightly underestimate the effect. Applying the same redshift-cutoff to the semi-analytical model (blue dashed) yields a near-perfect agreement on sub-pointing scales. Therefore, the seemingly better agreement between the mocks and the analytic method is purely coincidental. The models adopt the best-fit cosmology of H20.