Cheesbro ... It's a fact to you and anyone that says it is ... In your opinion.
Others have measured the changes... Myself included.
Many times I have said that some speakers seem to be unaffected ... others ther is a noticable change.
I'm not some novice and these Axioms are not my first set of speakers.
I've been an Audiophile and musician for some 30 years.
Like I said ... I'm not going to argue the point.
I know what I know and whether or not the Axioms or other speakers break in ... the bottom line is ... I think they sound wonderful.