I didn't read your preamble so as not to be too biased.

This hand reminds me of the hand where you overplayed trip A's (I think with a 3 kicker) and got a somewhat fishy opponent to fold an apparent flush on the paired board.

Much in the same way, your line can get a fold from a solid villain's strong hand (obv overpair in this case) or get called by a very marginal holding since thinking villains will put you on a set or 78... or a 3 barrel bluff that started with "you are FOS (you to preflop raiser)" with your flop raise.

So I think it's a fun line, since it's almost impossible to put you on AJ. Good for metagame, yada yada...

It also reminds me of one of Strassa's recent posts where he 3 barrels with 2nd pair HU vs Ivey. He got flamed a lot for it, but defended his play (successfully imo) by stating that, in the long run, it makes it virtually impossible to put him on a hand, since he's no longer either betting a monster or a bluff, which is kind of what you've done with your range by playing AJ this way here.

edit : just read your synopsis. lol@ basically restating what you said in you last paragraph...