"Oh, and as for break-in, I'm at maybe 100 hours? That seems like it should be enough to get a sense of where things are headed no?"
No. The Heritage Series of Klipsch needs a lot of time to break in. I'm thinking 200 hours is not nearly enough, and you should leave them playing as much as possible, even when you're not at home.
Are you using the risers with them? If not, then you should. Also, position them slightly in front of the couch, or at least even with it.