by changing this angle you can make the shock feel a little stiffer (the shock angled or laying down more ) or a little softer ( shock standing more upright ) as the car rolls.
if you want a little more initial turn in but less steering in the middle of the turn , lay the front shock down more or stand the rear more upright. If you want a little more on power steering, lay the rear shocks down more or stand the front more vertical. hope it helps