After tightening the screws on the midrange, I had to turn up the bass to rebalance the subjective sound. Then I realized that was kind of half-assed, so out comes the measuring tools (a cool FFT program) and I spent some time over the last 2 days dialing in my midrange/bass integration. I'm glad I did it because a few things became obvious that were not obvious before.
First, my right speaker is too damn close to the wall. Created a suckout in the 150-300 hz range. So I moved the speaker away from the wall.
Next, the phase, crossover settings and EQ settings vary a fair bit between my left speaker and my right. For my left speaker, phase is "13 clicks from 180 degrees", hehe. And all EQ focused on a 60hz room mode bass hump (which dialed it down nicely). For my right speaker, phase is set to zero and no EQ is needed. Crazy.
Thirdly, my couch was too far back. I got better measurements about a foot in front of my normal listening spot, so I moved the couch a foot forward to take advantage of this bit of serendipity.
How does it sound? I don't know! I finished the measuring/settings and had to rush off to have a nice steak dinner grilled by my dad for me and Kira (she loves steak), and now she's in bed and I can't listen, haha. We'll fire it up tomorrow and see how it sounds.