Bandpowers for galaxy-galaxy lensing (top panels) and cosmic shear (bottom panels) for a selection of redshift bin combinations (indicated by ‘L’ and ‘S’ for lens and source galaxy samples, respectively; see Sect. 3 for details). Grey and black lines show the true underlying angular power spectrum; the associated dotted lines the average of these power spectra over the angular frequency band. Bottom panels: relative deviations in the cases of maximum AGN feedback (blue/green) and using the Takahashi et al. (2012) Halofit version (orange/red) with respect to Mead et al. (2015) without AGN feedback. The grey shaded regions in the top panels show the conservative limits applied to the low- and high-redshift lens samples (excluding all and light/medium grey regions, respectively), as well as the more optimistic cut if galaxy biasing were well understood (only excluding the dark grey region).