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Since during plastic deformation of a crystal the CRRS controls the movement of dislocations, grains which are well oriented for slip on a particular slip system will in principal be able to deform more easily than those whose slip system orientations result in low resolved shear stresses. Fig after Urai and Jessel shows a numerical simulation of deformation in a polycrystal with only one slip system, notice how in the the three coloured grains have undergone virtually no deformation (yellow) a lot of deformation (orange) and a lot of deformation with internal kinking as well (green). The short lines within grains show the local slip system orientation.