[nissanfanatic]

Well I don't see there being a big difference between the organic and the kevlar, but when you start getting into puck-style clutches, you'll get less smooth engagement. What are you planning to do? I believe the ACTs are underrated as well. I don't think the organic is going to disappoint you. BTW, multi-disk clutches, like Exedy's twin disk, are hella-expensive. IIRC the twin disk was in the quad digit area. It is a great clutch and is pretty streetable from what I read. I believe they had it in the Dsport R33 skyline project car and it was daily driven. I just wouldn't pay for it when you can get a clutch plenty capable for much less. Good luck.