Originally Posted by kilohertz

The software assumes a completely rigid chassis and is really only designed to adjust the variable suspension components themselves. I had the same question about the thickness of my X-ray chassis a while back and this is basically what Bob told me. It's a cool program and I have used it successfully to setup 2 of my cars.

So basically you want the chassis as rigid as possible for the program to be the most accurate, of course the chassis flex is variable so it's best to start with what the program recommends and then you can fine tune at the track.

Good luck.

Cheers