There is so much more to it than deciding if straight line traction or cornering will be affected, obviously if the wheel is perpendicular to the tar then the tire should have 100% of its road contact patch, but having any camber away from zero reduces this, plus the geo change under squat if any will add or subtract to your static figure.
If you have these figures you can tune your settings, if you don't anything you do is purely guess work.

The same applies to cornering, as the body rolls around its axis the load at any given wheel changes, thus if your suspension geo changes through compression this dynamic adds or subtracts to your static.

Sorry there's no easy answer but an educated guess gives a good starting point.