Would it be better to use a Polk Monitor 70 as a center channel (to match my front left and right speakers) instead of the CS2 which is polk's matching center channel? The reason why I ask this is that i have the vertical space to do it (since i have a projection screen which is mroe than 4 feet off the ground), and that once i buy a center channel stand and everything, the price wouldn't be much different than just using a matching monitor 70. Would dialogue dispersion be negatively affected? Any thoughts on this?