  The self-organized dopant percolative filamentary model, entirely orbital in
character (no spins), is strongly influenced by background (in)homogeneities.
In the high temperature superconductive (HTSC) cuprates, pseudogap regions
produce novel percolative features in phase diagrams. The model is especially
successful in describing the appearance of giant magnetic vortex "precursive"
effects at temperatures ~2 Tc far above the superconductive transition
temperature Tc.
