Centering55/45 or better on the front. 60/40 or better on the back.
CornersCorners are mostly sharp with very slight wear at the tips. Imperfections are barely noticeable without magnification.
EdgesEdges have almost no signs of fraying, chipping, and nicks. Under magnification, multiple flaws are visible, but not significant.
SurfaceVery clean surface with no visible scratches or marks under normal inspection. Only tiny imperfections visible under magnification.