Here are the pictures of H2 ETMX earthquake (EQ) stops before any work was done on the optic.  It shows that only two of the 8 stops have chipping where the EQ stops contacted the chamfer of the optic (though one picture is blurred, so no clear info there).  This info might be useful when looking at the optic now, because I created some chipping when raising the optic to remove the suspension wire.  As I recall, the SW Upper EQ stop site suffered the most chipping.