Negative Camber Gain, one size fits all?

[68Formula]

Different manufacturers quote values for camber gain with the idea that more is better. Isn't the desired amount dependent on spring rate?

The idea of camber gain as I understand it, is to maintain a flat contact path as the side-loading of the tire increases. If the gain was ideal for a car with 600lb springs, then you replace with 400lb springs, the lean would increase and therefore more camber gain for the same entry speed would result. It seems too much camber gain would over-compensate for the tire loading, therefore reducing the contact patch to the pavement.

Am I off-base here or is there something else going on?

Sorry in advance if this is not technical enough for the forum. I really wanted to get some experienced answers.