Yes, Jerry I am aware that the mortar doesn't actually bond to the steel, poor wording on my part.
I agree with your criteria Brandon. I think some of the differences are between what gets done in old and new construction. Old const up here won't have flashing, new will.
Some people are also capping and caulking older lintels to avoid further problems. Muni insp are not happy about this and sometimes make owners remove the capping depending on what the brick looks like. Since once it's capped you can't see what the lintel looks like. Such as so-so or completely rusted out.

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Accurate Inspections & Consulting, Inc.
773/844-4AIC
Markus Keller