Dependence of the 1σ error on the number of tomographic bins for S₈ (top), w₀ (middle), and Ω_m (bottom). Constraints are represented in blue for voids, green for peaks, and red for the full 1D M_ap distribution. Dotted and solid lines respectively correspond to the previous tomography set-up (auto-M_ap only) and to the improved tomography (auto- and cross-M_ap). Black dots represent the γ-2PCF (both auto- and cross-correlations) in configurations with 1 and 5 tomographic slices, and color dots the combination between M_ap map DV of the same color and γ-2PCF including all auto- and cross-terms.