I destroyed my case today at Canada's toughest enduro race, the corduroy enduro. Fluke crash into a rock in the grass track section. Anyhow, engine never died and I rode it out the last 500m to the road. You could here there was something wrong with the bike so I checked at the end of the test section and sure enough this giant hole was in my case. So here is the question. Repair method. A)definitely need a new case but b)what further preventative measures are needed to make sure no metal in engine. I've asked around at the race and the consensus seems to be the transfer line/port between case and engine sump is small and flushing case to drain plug should clean out any small particles. Thoughts?