I spent some deployed down time converting my entire history to a digital logbook and when it came to some missing records I made a single entry in my logbook with the totals, and in the remarks I made a note to reference the memo from HARM office detailing the records correction for the hours.

I never had to refer to it, but it was one less thing I had to worry about when going into a logbook review, no different than tabbing every checkride, qual ride, certificate, etc. so they're easy to find when you get the questions like "can you show me the entry where you got your xxx type" or "show me your checkride entry after you came back from that 2 year break in flying". The better prepared you are for those questions, the more confident you'll be during the entire interview process and they won't have as much to pick at when looking for problems.