Centering70/30 or better on the front. 85/15 or better on the back.
CornersCorners are mostly sharp with very slight wear at the tips. Imperfections are barely noticeable without magnification.
EdgesNear-perfect edges with no visible imperfections under normal inspection. Only the slightest signs of wear may be visible under magnification.
SurfaceLight surface wear with scratches & slight scuffing visible with the naked eye & under magnification. Surface is clean.