Through analysis of the LASSI eigenvectors of the Fe 3 system using a minimal (3d only) active space, we furthermore identify more categories of LASSI model states which are deadwood, and eliminate them systematically through a further approximation which we call LASSI[r,q CT ] (CT stands for charge transfer). This latter method, for the first time, permits us to carry out LASSI calculations for which the corresponding conventional CASCI is impossible: Fe 3 with a 3d and 4d active space. We contrast these results to those of a comparable DMRG calculation.