I have NHT 3.3 mains, AC2 center, 1.5 sides, and superzero rear centers. I would love to go with 2.9 sides/rears (and even go back to 5.1), but I just can't place that deep a tower speaker in my current room. So, I am thinking about getting either a pair of VR3s or a pair of AC2s (placed vertically) to replace the 1.5s. What do you guys think? I know the AC2 is the better match, but I'm not sure the dispersion would be ideal (placed as a vertical rear speaker). How close are the drivers in the VR3s to the 3.3s?