I’m of the camp of just “run em”
Some won’t really change and others come alive.
I had some Jbl 2226h’s that were so dead and dry and slowly came alive (mostly in the bass department).
With subs it depends also. I had Eminence Labs that never changed (not that I wished them too).
Called Eminence and they said there was no need to try and break them in they won’t change! Should’ve called first lolololol