Residuals of the maximum-likelihood best fits against the input galaxy power spectrum data vectors, assuming the case with all bias parameters free to vary. Different columns correspond to different redshifts, as shown on top of the corresponding column, while different rows mark either the Model 1 (top row) or Model 3 (bottom row) HOD sample. Different colour shades mark the best fits obtained at different k_max values, from 0.1 h Mpc⁻¹ up to 0.45 h Mpc⁻¹.