christian and beccy: On the flip side, if you don't get it right, you can make it so the low intertia can actually make the rev's drop really quickly when you come off the throttle, taking you down below the peak power-band.

I agree with the above saying, if you are mearly considering changing it whilst you are doing a clutch change, then i would rather just have the standard one skimmed and fit a new clutch and crankshaft oil seal up with it