Thanks CB919. Though I appreciate the theory behind matching LCR and vertical placement (it's what THX recommends as well), I have to admit I like the aesthetic look of the VP150 flanked by the M22's. I likely have the room to place the M2 where the VP150 is located but it would be a tight squeeze and would likely require I move my X-Box 360 Kinect module off center.
At some point in the future (X-Mas?), I'll probably get a pair of M2 or M3's for rear surrounds and I may do a quick test using one of them as a center in a 5.1 configuration to satisfy my curiosity...
