Handling Time Machine after change user shortname

I used the instructions at https://discussions.apple.com/docs/DOC-3872 to change my user shortname and as predicted, while I have access to my TM backups, I'm concerned that TM will make a complete backup of all my data again, since the username is different so will the paths to my data files.
I have looked at Pondini's wonderful TM website, particularly at http://pondini.org/TM/B6.html. It isn't clear to me whether I should be using his "inherit" trick or his "associate" trick, as none of the described scenarios is exactly what is going on with me.
Does anyone know whether when changing the user shortname it's better to "inherit" the backup or "associate" the backup?

Robert Camner wrote:
I'm concerned that TM will make a complete backup of all my data again, since the username is different
Correct. If the home folder has a different name, it will be backed-up in its entirety. You cannot prevent it.
I have looked at Pondini's wonderful TM website, particularly athttp://pondini.org/TM/B6.html. It isn't clear to me whether I should be using his "inherit" trick or his "associate" trick
Thanks, but the answer is "neither." You don't have an actual or apparently different Mac or HD.
You'll have a wrinkle with the Time Machine browser, too. When looking at backups of, say, the Documents folder in the new backups, you won't be able to go directly to the backups of the old one, since they're in a whole different folder. Select your HD in the sidebar (or press Shift+Cmd+C), select the Users folder, then navigate to an earlier backup until you find the old home folder.

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Pondini wrote:
Michael Lowry wrote:
2. Time Machine does not recognize old backups as being from the same computer if the Migration Assistant method was used to restore the computer.
Not exactly, but the result is nearly the same. When you erased the internal HD, it got a new UUID, so to OSX it's a different drive, and everything put back on it was considered as new, and Time Machine backed it up.
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