Wall Banger.....
You can take steering out of a chassis in many different ways. Try stiffening your front end by moving the shock position out one hole at the top. See what the result is and adjust from there. Your rear end may require softening a little as well, one change at a time. Roll Centres, springs, shock oil, sway bars, shock positioning, ackerman, bump steer, camber, toe, anti dive etc are all ways that effect your steering.

I have the E4FS - C1) I run outdoor asphalt and can say the car is damned good. Quality wise I would say it is one of the best. As for whether it is better, I came from a TC5 which I loved and can say this car seems easier to drive faster and responds well to set up changes.

Cheers
Aaron