In general, everyone that competes in sound quality will run only a set of comps in the front kickpanels. If powered and aimed correctly it provides a very good soundstage.

Listen to Fast66, if you enjoy stereo sound put the tweeters on the left or right. If you put them in the middle, You have a mess of sound waves with no orientation.

That installis very nice. Have you considered running the tweeters in a convertable setup (over the midrange)?