To shed more light on the different GEO trends with the basis set size, in Figure we show the GEO boxplots for MP2, B3LYP, M06-2x and HF at the three basis sets (for the same plot for other methods, see Figure ). Each of these approximations behaves differently. MP2 is a disaster at AVDZ and then it dramatically improves at AVTZ. A significant improvement is also observed as one goes from AVTZ to AVQZ. In the case of B3LYP, the spread is also larger as the basis set decreases but expectedly much less drastic than it is the case with MP2. M06-2X is interesting because its GEO trends change very little with the basis set size. This is also the case with other Minnesota functionals except for MN15-L 28 (see Figure , where we show the same boxplots for all tested approximations). HF displays a unique trend here: the spread becomes smaller as the basis set size decreases. This behaviour has also an impact on the GEO performance on hybrids, and in Section 3.4, we study in more detail how the amount of exact exchange affects the geometric performance of hybrids.