tfrahm: The TC3 has a tendency to be very aggresive on a high bite track. For low bite surfaces, you might notice quite a push with a 'normal' high bite setup, especially if you run a diff in the front. If you can manage, a one-way is usually your best bet to start outdoors. Helps the car steer alot. Your 'backwards' setup is pretty useful on a CERTAIN outdoor surfaces. I've been to two different outdoor parking lot concrete tracks and with the same outdoor-concrete setup, the car is good one place and REALLY bad at others. But, it's not unusual for your setup to happen.
spaz456: You might try either HPI's hot weather tires (I think they are the 33R or 36R) or Sorex tires (36R -> 40R). Either are good for outdoor hot tracks. I'm sure there are others but those are what we normally run in SoCal.
Matt: Make sure the ones you have are 190mm. There are some 200mm gas/rally arms out there that have both holes....