Configuration space RSD results from fits to the average clustering of 25 LRG cubic-box N-body simulations as a function of the minimum separation scale, r_min. Best-fit values of q_∥, q_⊥, df, and dm are compared to their expected values in the top panels. The mid panel shows the reduced chi-squared _rχ², and the bottom three panels display estimated uncertainties σ_q∥, σ_q⊥, σ_df, and σ_dm. Filled markers represent the baseline fit while empty markers indicate fits that include the additional ShapeFit parameter m.