Hah, I have an 08 Speedster 150 and the SC washers went in the first month at 11 hours and were replaced by the dealer. Now at 45 hours, a SC bearing went bad, causing the shaft to kick sideways and wipe out the SC impeller and housing and the gear on the crank that spins it. On top of that, my oil is glittery from the metal and my intake has some aluminum chips and such in it from the SC. So now with only 45 hours on it, I had to yank the motor and am going to have to tear it down to inspect and repair any damage that may be there.
Edit- didn't know how old or new the "new gen" supercharger was.