Comparison of our calibrated α values with those found by Magic et al. (2015). Similar to Magic et al. (2015), the HVB version of MLT is chosen to plot our α values. In Magic et al. (2015), the radiative transfer is solved instead of using a fixed T(τ) relation for the 1D atmosphere. Although Magic et al. (2015) performed the α calibration in two ways, we choose to compare with the α values obtained by the asymptotic entropy matching, which are indicated as α(s_bot) in their paper (magenta dots). The solar marks indicate the solar model.