I had the mechanic to put a new rear OEM one in there today to replace my SU in there. I would say I still prefer the OEM rear. The vib is so much less and now I can hear my music on highway. After all it's still me daily ride.
The shifting and throttle response are a little slower than the SU rear, but the difference isnt large enough for having the vib for me.
And, the wheel hop/clutch slip got a little better with OEM rear than SU rear, its funny, but I think it's due to the stiffer rear would put more stress on the side ones, which I think is the reason for the wheel hop/clutch slip since the motor/tranny are mounted sideway.
Well, maybe it's really the clutch, but I still refuse to believe it. We will see next two week when I changed out the side mm if these would improve...
Anyway, if you haven't change the motor mount until now, you gotta do it, it's great!
Josh