Originally Posted by Jack2
It would be much better if you bought a new chassis. The carbon composite upgrade from tamiya was really good and not overly exspensive.
I got the carbon chassis for my V2 and it made a very noticeable improvement in the overall handling of the car. It used to have a mind of it's own at times but now, it's very stable and predictable.
If you have to stick with your tweaked chassis, you can adjust the suspension to compensate but you really need a tweak board to do it. Just set ride height the best you can and then put the car on the tweak board and adjust accordingly. Then put the car on a flat surface and adjust droop by lifting the front or back of the car off the ground from the exact center of the car (I think this may be the knife trick mentioned above) and measure the difference between ride height and where the tires are touching the ground but not supporting any weight. This is your droop. Also make sure that both wheels leave the ground at the same time.
I found with my old chassis that you could get everything set just right and after a few runs and encounters with the boards that everything would change. With the new carbon chassis, it stays where you put it. Money well spent!