I like the Exedy Twin plate, I have used all manner of single plate including a custom twin spring plate making over 2000kg clamping force, all a pain in back side to drive and never lasted more then 9-12 months
I would never use a single plate again after using the twin plate, especially in a GTR, there easier to drive feel nicer and last so much longer, though I race my cars a fair bit both drag and trackdays and texi, the twin plate has been in this car for over 7 years now and still going strong
friction point can be adjusted and if a heavy pedal is what you want, very strange but hey each their own, disconnect the clutch booster