I have the rage 3, parts of me have thought about switching to the 6 bc I do believe there is more belt grip and you can dial in different stages of acceleration. Basically the rage 3 has 3 arms with weight adjustment and a rage 6 is a rage 3 with 3 additional arms at a different phase.
Watch the tech videos on there website. Best thing you can do at this point to fully understand the clutch.