Centering55/45 or better on the front. 60/40 or better on the back.
CornersClean corners with minor visible wear & softening. Tiny nicks are visible upon close inspection and more noticeable under magnification.
EdgesEdges have almost no signs of fraying, chipping, and nicks. Under magnification, multiple flaws are visible, but not significant.
SurfacePerfect surface under normal inspection. Any tiny imperfections are barely visible even under magnification.