For anyone who is finding replacements, the info as Cam mentions should also be reported to sudzee. Exactly as described; brick, note removed, note replaced with, and fp/bps of both.
From that point, finds are compiled analyzed, by numerous people, including at least one regional director of the Canadian Paper Money Society. Brick searchers, this is the chain of information processing that should be happening. This is the route that will confirm, validify, or even prove/disprove claims of findings (having to so with sheet inserts and single inserts). Please ensure you send brick information to sudzee in addition to whoever else.
For the record I have found one AOH in and AOK brick. Infact, within one BUNDLE, I found an AOH insert, AND an AOK insert. Brick was shrink wrapped upon start of research.
I had cousin bricks of this said one above, which were not missing the corresponding sheet notes, therefore showing that BABN is replacing $5s in singles as well as sheets.