So you're disagreeing with me, yet conceding there actually is a break in?
Ironically you're doing exactly what I did too; simply providing an opinion. All I can relate is what my own experience has been, which is that every speaker and subwoofer I've evaluated had a break-in period. Our experiences differ obviously, but that's the extent of it really. There's no science experiment capable of proving either vantage point right or wrong.