Here are eight PSA 8 cards I recently submitted for review. All were cards that I thought at least had a shot at a half grade bump. I don't have the cards back yet, but I got the results: two out of the eight cards received bumps from NM-MT 8 to NM-MT+ 8.5. Looking at these results, it appears that good centering and print quality for the grade are necessary to get a bump, but not sufficient. Whoever said they are looking closely at corner sharpness when doing the reviews was probably correct.This '53 Bowman Mantle was bumped to 8.5, but the '54 Bowman was not: This '54 Topps Aaron did not receive a bump, but the '54 Topps Kaline did: Both of these '55 Bowmans were rejected for the bump: Both of these '62 Topps were also rejected: