The Brush > Twist sub-palette controls the twist actions for the brush.
Brush > Twist sub-palette
Twist Rate
The Twist Rate slider affects how fast the twist will orbit around your brush when applying a stroke to the surface.
Centrifugal
The Centrifugal slider determines how much of the surface will be pulled or pushed as the twisting is happening.
Radius
The Radius slider controls the falloff of the twist rate.
Reference Guide > Brush> Twist