I'll call ya. I have only raced the car two weekends, but this past Saturday, I ran 10 laps in the main that were faster than my previous single best lap with the TC4 (and I had run the same layout all season with different set-ups). I have a set-up that worked really good for me, but it's not close to any carpet set-ups online, lol.
The car is super smooth, the only thing is it will take you time to learn the short cuts to wrenching on it.