Tom,
Of course Incogs decision depends on how the speakers sound in *his* room, not in a testing facility. I don't think he can afford a testing facility since he's been spending all his money on speakers, outlaw components and pizza/beer trying to get all of his friends over to audition the Axioms and Rockets LOL!
Regarding "Break-in:"
There is a belief that over time, the stiffness of the *newly manufactured* diaphrams (woofers etc) is reduced due to a lot of playback (via sonic fatigue). Because of this reduction in stiffness, there will be a change in overall sound over time. How much of a change - who knows? Some say thier speakers tend to sound more mellow (maybe less bright) after so many hours of listening.
In Incog's room (which also has carpet, drapes, pictures) the *new* Axioms sounded very bright (to me) and they are, as you say, very detailed. As with everything, some people prefer that, others don't.
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Nert's Home Theater---
Mostly electrically driven box-shaped things (with dials and buttons) connected by wires and cables of various colors, diameters and lengths.