Centering65/35 or better on the front. 80/20 or better on the back.
CornersModerate wear on corners, with fraying & chipping. Noticeable by the naked eye and more pronounced under magnification.
EdgesLight to moderate wear along the edges. Chipping & nicks are visible upon inspection, but edges are still generally clean with light to moderate wear.
SurfaceExtensive damage including deep creases, heavy scratches/micro-scratches, stains, and surface residue.