Centering70/30 or better on the front. 85/15 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.
EdgesEdges have very minimal nicks, fraying, & chipping. Not noticeable upon quick inspection, but after thorough evaluation it is slightly visible.
SurfacePerfect surface under normal inspection. Any tiny imperfections are barely visible even under magnification.