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I am upset because the other posters gave no acknowledgment that the other guys way might be okay. My way is not wrong. It is not the only way, but not wrong. By saying, I wouldn't use 5200, or don't use 5200. it implies I have misled the thread originator. I have not. Respect for the other guys opinion is important, lack of such is why a lot of bright people don't post. By the way, mark the old filled holes with tape, and drill your new rivet holes in between, this avoids any structural issues.