I am interested in the concept because supposedly they have less drivetrain loss and can use light flywheels. Why I ask is because I am talking to this guy in japan who is gonna score me a used twin plate clutch off of a TT. I won't buy if it is worn, but I will probably buy all the rebuild parts in addition to the clutch. Suggestions? Is there anything special you can do with a twin plate that to cannot do with a conventional clutch?