I keep starting over too lol. Here is the thing. A car is designed a certain way. And no mater what you do, you cant completely alter its nature. The nature of the 4x4 is a loose rear end. Pro's will probably love the rear ends moment on high traction. Others will thing it too twitchy or uncontrollable and try to make the truck push. I personally do not believe you can completely change the nature of the truck, just mitigate some of it. If you feel the truck is 100% off at the start, it might not be the truck for you. If you think it is 25% off at the start, you can probably get it where you want it. For me after all my tuning and monies spent, I am at about 75% off, I dont think at my out door track it will ever be what I want. But someone might be in town next weekend and I hope to try their truck and have them try mine and see if we cant do more. But i have my doubts. Same with my xxx losi buggy. It came out of the box pushing hard on outdoor tracks. Nothing I could do would ever make it turn like a b4. So cant completely change the nature of an RC. You can disagree, but that is my belief.