I am looking into seriously getting the Z-Strat clutch for the bike. I think this might make a big enough difference that I could do longer stretches or maybe even race. There was a story floating around that someone smoked there clutch running one of these in the mud for a long run. Can someone tell me the story behind that? Was the ball weight to light? Does anyone run one and have the steup that works best? Does the cluch disingage going down hill? Is there still engine braking? I know you can't bump start it but, I heard both that it disangages with no engine braking and that there is engine braking. This is the left wrist I have to work with: http://www.borynack.com/Bruce/Video/Finished1.JPG I don't have a lot of use out of it but, if I didn't have to use the clutch I might be able to hold on to the bike a little longer.