Minimum χ² as a function of S_H obtained from global EW fitting with the ⟨3D⟩ and LHD model atmospheres. For each of the three triplet lines, we plot the minimum of χ² (nonreduced) at fixed S_H. No minimum of χ² is found in the range 0 ≤ S_H ≤ 8 / 3. At S_H = 0, the implied oxygen abundances are A(O) = 8.61, 8.62, 8.63 (⟨3D⟩), and A(O) = 8.59, 8.60, 8.61 (LHD), for λ 777.2, 777.4, and 777.5 nm, respectively. The best fits would be obtained at negative S_H and even lower A(O).