I am looking into apping Aizen at Lieutenant-era, as he seems to be somewhat less Just As Planned at this age. I intend to do a canon review of the arc in question.

I am looking for ways to play him as less infallible while still being IC, and possibly interact with others that isn't overwhelming constant arrogance, for maximum RP opportunities. The way he pretends to be a nice guy does work short term, but are there other options that still align well with the character?