I also hope to improve the electronics layout of my 4x - the weight is spread out more than my other TC's and it doesn't seem to be as nimble as it should be. I want to move the servo more inward and further back. That being said I had a good run last Friday setting a new consistency PR of 98.6% with the car as it is. But I just couldn't get around the corners quick enough to challenge the top racers lap times.