Man what a great car. Tried some rollcenterthingies in the front and yes it's easy to change and yes it works super. Had to use some other shims then those in the kit cause I didn't have enough of them. With 1mm shims under the frontupperarm you''ll get a little more steering.
It's allmost glued to the track never had that "feeling" with my other car before. Makes you feel very comfy and makes you push the car more and more.