I would also like to put in my $.02. I appreciate you doing all of this work and data collection but where is the wing? Other than the front splitter, the wing should probably be the next thin you look at in terms of creating downforce in the car. Also, need light weight 18"s and fat rubber, not 19s.
You also don't want to 'lower' the car too much because you then compromise the rear control arms too much so the travel distance and suspension geometry is off. Trust me, I added handling by raising my car 3/4 of an inch all around lol.