The ΔT_eff, Δlog g, Δ[Fe/H], and Δv_mic computed from the free run (described in Sect. 5) for each star from top to bottom, respectively. We note here that the Δ represents the difference of the node and adopted values for each parameter. For example, Δlog g = log g_node −log g_adopted. The BACCHUS (ULB) method is denoted as the open magenta diamond, the iSpec method is denoted as the open blue hexagon, the EPINARBO method is denoted as a open green star and the Bologna method is denoted as an open red triangle.