Service Bulletin but not for the RS?

[Ray]

Was there any change in footpeg vibration after the shaft replacement?

After a rear tire change, my bike has been developing increasing and uncomfortable footpeg vibration.  The bike tracks straight and there's no noticeable tire vibration (handlebar shake).  Acceleration seems weak (in gear) and throttle roll-off seems abrupt.  The engine freely revs when clutch is disengaged.  Initially, the vibration only annoying above 4000 rpms, but now it's noticeable at lower engine speeds. 

I called my dealer for a service appt, but they won't look at anything for 6 weeks.

(Sure sounds like a drive train issue.)

Yes. In my case (and others), the foot peg vibration was a failing proximal universal joint on the shaft. Buzzing was initially intermittent at only higher RPM. All resolved - including the abrupt roll-off - with replacement. If the proximal swing arm hits high temps..., time to put the bike in a trailer. 

Unless the failing cardan damaged the transmission, the dealer is not looking at a lot of time to evaluate and replace. 

Take care. Hope we're wrong.