Well, I finished wiring in the new controller tonight and took the car for a test drive.
All I can say is, this is what the car's been missing. I have so much more grip now, it's retarded. In fact, the front end is grabbing so much more under braking and acceleration, I'm going to have to loosen the suspension back up a ton... I'll probably have to toss the 450 springs back on the front of the car instead of the 550's. And maybe even go back to the big rear swaybar.
One interesting side effect is that I've got the DCCD set to 35% lock under breaking, which increases the braking load on the motor significantly... so now when I'm braking hard from speed, the engine backfires like 7 times in a row...
Coming off the freeway exit, I swear the car sounds like it's got an old school anti-lag system, and it must spit a long-ass stream of fire.