Pearl schreibt dazu (vielleicht hast dus schon gelesen):
The interchangeable cam system features four uniquely shaped cams.
The Black Cam is Pearl's original linear-feel cam for smooth, well-balanced action.
The White Cam is also linear but larger in diameter for a lighter feel and increased power.
The Blue Cam is offset and starts with a light feel at the beginning of the stroke and accelerates with speed and power upon impact.
The Red Cam is radically offset and provides great response for sensitive footwork and extreme power upon impact.
The Purple Cam is right in between the Blue and Red cams so it splits the difference.
The Yellow Cam has a top-heavy feel and it can play moderate tempos with very even dynamics. For example, when playing shuffles, the second beat of the "duh-duh" is as strong as the first.
All cams attach and detach easily at the push of a button.
Viel Spaß mit dem Gerät. 
LG
Niop
