Originally Posted by
eComet
For the circle in green, higher (more spacers) gives lower roll center, meaning it will roll more, which makes it less responsive and grip more.
On the opposite, lower (less spacers) gives higher roll center, meaning it will roll less, which makes it more responsive but may grip less.
Actually the change to the roll centre is minimal, you notice the camber change much more which has the opposite effect - less spacers, more camber change, more grip, more aggressive