FBinNY I don't know about these things, so a question: is the offset built into the ring on one side? That is, could the OP have created this problem by using the right ring but flipped inside for outside? 40 years of prefessionally repairing things has shown me that people can be remarkably creative in putting things back together wrong in spite of all of the clues (like ignoring which side the countersunk screw holes are on, for instance.)