Is the VP150 suitable for use as both the center and as mounted L/R front speakers?

They would obviously be perfectly matched, the VP150 can handle more power than the W22s, they don't take up floor space like the M60s/M80s (a spouse requirement) and they can be aimed--unlike the W22s. On the flipside, the VP150 is obviously not designed for this purpose. It also operates at 6 ohms, whereas the W22s operate at 8 ohms--not sure if that makes a difference.