What is the goal after deciding that there is or isn't such a thing as "burn-in"? If there is such a thing, it is not obvious to many, so the effect is minimal, if even measurable. As an example, while there was an obsession with speaker cable burn-in, the real culprit was the speaker's performance and replacing the speaker is what brought real improvement to the system, (for awhile).
Isn't it too frustrating to persue something with such vigor that brings such a small return. Everyone has a system that is imperfect. Accept it for what it is and enjoy the music. Go for the obvious improvements.
W