I agree with not complicating things too much. I guess I'll leave my chassis at one particular setting for now, and try to adjust other things. My tc4 was the king of traction rolling, but now it's as planted as a pro racer . Thanks Bob! I don't have your program yet( I got no credit card/Paypal), only an Android phone and old windows98se computers , so I am in the hole .... I'll see if I can get ready by 2013 ....