I need to replace my clutch on an 06 yz450f, and I think I remember reading something about how Yamaha changed the clutch from 06 to 07+ and that the 07 had an easier clutch pull due to less plates?? Am I completely wrong? Anyways, what year clutch should I buy? I like easy clutch pulls, but I dont want to sacrifice longevity/durability with less plates. Any input appreciated.