Well, every time I open my primary to add more weight I find at least one clutch arm somewhat tight and before re-assembling, I have been spraying with brake cleaner and the arms free up. I have greatly improved clutch performance with filling the rollers with weight but I am realizing that the most noticable thing now is the proper shifting after cleaning. Yesterday we went to Fernie and enjoyed hip deep fresh powder. About 4 hours in we jumped back on the trail and my I noticed that my clutch was resisting shifting out unless I rode really aggresively and reved it and rode fast. The pre-clutching vibration was back too, it felt terrible. I just got out of the garage now after pulling the clutch apart and 2 arms were tight. I pulled it right apart and the bushings were full of gunk and the pivot pins had a build up on them. I used WD40 and very fine emery cloth on the pins and cleaned the inside of the bushings as best as possible. I expect I gave them a bit more clearance with the emery cloth. It feels great now, see how long it lasts? I hear no lube is necessary, anybody else have this problem or use some kind of lube anyway?