Well, I just wanted to post back here and say I solved my cooling issues for certain.
The core issue was that I wasn't getting the airflow through the radiator required to properly cool the car down. Initially, I had the FMIC, oil cooler, A/C condenser, all installed in front of the radiator. I also had the "Euro" grille installed, which effectively cuts the grill cross section in half, hindering airflow. Lastly, I had a Mishimoto dual 12" radiator fan and shroud setup installed for cooling at idle. Somehow, the shroud/fans or both were hindering airflow as well.
The recipe for cool engine temps wound up being removal of both the Euro grille and the Mishimoto fan/shroud setup. I tried multiple combinations of parts, only to find that neither the Euro grille nor the Mishimoto fan/shroud setup (together or separately) can be used. I even installed the Mishimoto fan/shroud setup with the Eterna grille, and still experienced higher than normal engine temps.
My current config is as follows:
-A single stock puller fan wired up to function as stock
-180* Stant Superstat
-60/40 water/antifreeze mix (plus a bottle of WaterWetter)
-New stock OEM replacement radiator
-13lb Stant radiator cap
-Eterna grille
-Hood vents open
-FMIC, 90 oil cooler, A/C condenser still in place
-DIY heat shield for the FP manifold
-Heat wrapped hot side IC pipe
The above combination FINALLY solved my cooling issues. Again, all I really did was remove the Euro grille and swap the Mishimoto fan/shroud setup for the stocker puller fan. On the highway, I'm seeing a consistent 193-196. At idle, I'm typically sitting anywhere from 196-206. I Haven't seen anything above 206 thus far. I'm finally happy with the temps I'm seeing, and am still planning on adding the manifold blanket to finish things off. I'm also planning to add another small 10" puller fan opposite of the stock fan, for a little extra airflow at idle.
I miss my Euro grill already, but the Eterna grill looks good as well /ubbthreads/images/graemlins/grin.gif