Recent work on various hot pressed SiC materials, has suggested that their transitional velocities depend on hardness and a form of ceramic plasticity and that it maintains its strength to over 8% plastic strain, which does not happen in boron carbide. It has also been suggested that the presence of planar features in SiC may have been a major contributor to this “quasi-plasticity”. There is also evidence that the presence of apparent “twinning” in boron carbide enhances the thermoelectric Seebeck coefficient. In a previous presentation (Part 1) a review of a variety of examples of the synthesis and processing intragranular planar features in the boron carbide and related systems was presented. In the deformation stage resulting planar fracture (cleavage), micro-deformational twinning and planar deformation features (PDFs), including amorphization nano-bands can be formed. One option, among others, to possibly increase boron carbide plastic strain may be the presence of existing planar features and their formation in the mechanically stressed stage. Also, recent modeling and experimental work treating the planar features as “quasi” grain boundaries suggested that they did have an influence on the resulting mechanical properties.