HI, I was out riding some tech trails yesterday, and high sided and laid it down in the rocks on a rocky loose hill climb. Dented in the clutch cover enough to cause it to rub on the clutch pressure plate when I pulled the clutch all the way in. Not to excited about aluminum floating around in my motor and getting into the bearings. Anyway, anyone have advice in what clutch cover to go with...billet or mag? I think mag so it will bend rather than crack. My second question is more important, what to do to get a good flush of the oil system to clean up the aluminum shavings? I was going to drain and fill 3 times and run the bike 10 mines each time and change the oil filter each time and hope that gets all the remnants out. Any other thoughts based on experience?