(Brian, I don't see a "General Discussion" area, so I put this here.)

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What to you do when, weeks or months after inspection, you have second thoughts about how you reported something of potential importance to the client.

Say, for example, you take a fireplace class, and realize that you failed to recognize and report that the chimney termination was incorrect for a wood burning fireplace, or you are reviewing old photos for another reason and realize that the proximity of a cold air return just around the corner from a furnace might create a hazardous situation (both are theoreticials, created for this discussion, but I assume most of us have actually had this sort of experience).

Do you communicate with client, formally or informally? Provide an amended report? Or just "let sleeping dogs lay"?