what are the crossover points for the Midrange, and tweeter? My suggestion would be to keep your midrange down low, the 6.5 in the door, and try putting you tweeters in the a pillars about 4 inches up, firing directly at each other. as long as you tweeters are play 4.5-5 k and up this will increase you stage height dramaticly. I'm just trying to save you some work cause it sounds like you have lots into you kick pods already. Also pillar mids can be very tricky, and will sound like crap if not done just right. IMO.. just try using some double sided tape to attach you tweets to the pillars, you may even want to play with the aiming, but I think moving them up on the pillars will help you a lot.

what kind of car are you installing in?? you could also post some pics so i can get a better idea.