Centering55/45 or better on the front. 60/40 or better on the back.
CornersClean and sharp corners with almost no visible wear. Tiny imperfections such as minuscule nicks & softening are present under magnification.
EdgesPerfect edges under normal inspection. Any tiny imperfections are barely visible under close magnification. Edges are sharp and clean.
SurfaceNear-perfect surface with only the tiniest imperfections visible under close inspection. Surface appears clean and free of noticeable marks.