Even if you measure the camber links (struts), ultimately a single bent screw (or worn threads), bent shock mount, screws in the arm not straight, etc will throw off the accuracy of the scientific method you are attempting.

Simply make sure you're your shock collets are dead even (left and right), and your ride height is exact, weigh your car and place weights as necessary. Then race.

Hooke's Law certainly applies to the springs, but I think some guys might be misinterpreting what's being affected. If your springs are exactly equal (which they most likely aren't but are close enough that it doesn't matter for practical purposes), and you make sure they are set identically by the collets, then Hooke's Law also says your scales will tell you if your car isn't left/right balanced. If your collets are off, then because of Hooke's Law, you will still be able to balance your cars on the scale but the amount of weights you use will be different. So I'll say it one more time...

Simply make sure you're your shock collets are dead even (left and right), and your ride height is exact, weigh your car and place weights as necessary. Then race.

Nobody, not even the best pro's, will be able to tell the difference on the track from an absolutely perfectly balanced car, and one balance by the method above.