Results for the larger (16,30) active space are presented in Table and Fig. . The qualitative picture is the same as for the smaller active space: the previously-reported LASSI and LASSIS results agree with the DMRG reference but seem to underestimate (i.e., compared to the CASPT2 (16,15) results) the gaps between low-spin and high-spin states due to missing dynamical correlation, which is partially addressed by both LASSIS-PDFT and DMRG-PDFT. The PDFT gaps are still smaller than those predicted by CASPT2 (16,15), which may be related to orbital-optimization effects as discussed in Sec. 3.3.4.