Centering70/30 or better on the front. 85/15 or better on the back.
CornersNear-perfect corners with only the slightest signs of wear under very close inspection. Corners are sharp and clean with no visible imperfections.
EdgesPerfect edges under normal inspection. Any tiny imperfections are barely visible under close magnification. Edges are sharp and clean.
SurfacePerfect surface under normal inspection. Any tiny imperfections are barely visible even under magnification.