Bman, I think there are 2 things going on in movies that lead to no difference amongst left and right fronts: 1. No need for a stereo soundstage given the surround formats, and 2. Little content in the front left and right.

Pheare, knowing what I know now, I advise you stick with your M22s but do get the 160v4. Trust me, you will kick yourself for not upgrading earlier. Stop analyzing and trade up to the damned thing already.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated