The clutch disc is very nice however in my own perceptions if doesn't hold the power I was expecting. I am running around 450 at the wheels and was expecting it to hold no issue up to 600. I have been experiencing some slipping under high take offs. Over all, I should have gone with the 6 puck as intended but relaize this was most likely the fault of my own. Aside from that, I am satisfied and rate it as a 9 for fitment and ease.