Had the EX out to the dunes and it was acting a little funny at times. Had some clicking that I believe was coming from the clutch. Another reason I believe it may be the clutch is this is my first change to synthetic oil and I've heard some horror stories about synthetic and clutch slipping. It didn't, however, prevent me from winning 5 out of 7 drag races vs. my friend on his 250R.
So what are the symptoms?