Glad you found something you like. My brother has Energy towers/sub combo (forget the model) and I like them as well. My M60s seem a bit more concise but the two systems are a province away o it's probably unfair to compare them directly.
By the way, most folks consider speaker "break in" a bit of a myth. With the parts used today, any break in occurs within a few seconds in it's first factory testing. At least that is what I have learned from experts who know much more than I. I think sales folks like to talk about it because they are either are not trained well or on the sneakier side, they realize that it takes a person's ears and brain a little while to settle into a new speaker and/or it might trick you into keeping them past thier easy return period.
You listening to the remasterd Beatles? I'm curious to hear more opinions on wether it's worth the investment.
With great power comes Awesome irresponsibility.