wiggle of the starting line.

If you can get it to lift the tires off the track you will find out quickly if it is the front suspension or the rear. Ask me how I know! And be prepared to back off quickly!
And that right there folks is how you crack your fiberglass front fenders. Ask me how I know. The chowderhead behind the wheel on my Cuda did the infamous panic lift thereby bringing front end down a bit unceremoniously if you will.